Open thread, Nov. 3 - Nov. 9, 2014

4 Post author: MrMind 03 November 2014 09:55AM

If it's worth saying, but not worth its own post (even in Discussion), then it goes here.

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Comments (310)

Comment author: jaime2000 03 November 2014 03:31:11PM *  31 points [-]

Eliezer Yudkowsky is writing a new sequence called "Yudkowsky’s Abridged Guide to Intelligent Characters." On the one hand, it's great; quite interesting to read and very useful to rational fiction writers. On the other hand, I'm kinda saddened that Eliezer appears to have given up on LessWrong; the sequence is posted entirely on his Tumblr, and uses his Facebook as a discussion forum.

Comment author: Vaniver 03 November 2014 09:17:54PM 8 points [-]

the sequence is posted entirely on his Tumblr

It's also posted in a weird way? Despite following him when he first advertised his Tumblr, I don't see it on my Tumblr dash (but obviously following the links works).

Comment author: MathiasZaman 04 November 2014 06:30:48PM 1 point [-]

You can make posts on tumblr that don't show up on the wall of your followers. Most people don't use the functionality, but I believe Yudkowsky uses it so these post won't be reblogged. Helps centering the discussion in one place (facebook).

Comment author: [deleted] 09 November 2014 12:30:36PM 5 points [-]

Given up? Fiction/fanfiction writing advice belongs on Tumblr, Reddit, Facebook, and other social-hangout sorts of places. LW has more of the flavor of wannabe academia.

Comment author: passive_fist 03 November 2014 09:03:05PM 11 points [-]

I'm curious as to why he's given up on lesswrong. My knee-jerk reaction would be "because the attitude on lesswrong is now incredibly bad and fully counter to the goals he had for the place", but I'd like to know in his own words why he's less active in the LW community.

Comment author: jaime2000 03 November 2014 09:16:54PM 11 points [-]

I can't find the link now, but I seem to recall him saying that Facebook was more hedonic than LessWrong because he could simply delete and block people who lowered the discussion quality without technical obstacles or social controversy.

Comment author: Viliam_Bur 04 November 2014 09:54:25AM 8 points [-]

Well, if posting on LW is no longer fun, shouldn't we try to go more meta and fix the problem?

Of course, this shouldn't be Eliezer's top priority. And generally, it shouldn't be left to Eliezer to fix every single detail.

I think it would be good to have some kind of psychological task force on LessWrong. By which I mean people who actually study and apply the stuff, in the same way we have math experts here.

The next step in the Art could be to make rationality fun. And I don't mean "do funny things that signal your membership in LW community" but rather invent systematic ways how to make instrumentally rational things feel better, so you alieve they are good.

More generally, to overcome the disconnection between what we believe and how we feel. I think many people are doing the reversed stupidity here. We have learned that letting our emotions drive our thoughts is wrong. So the solution was to disconnect emotions from thoughts. That is a partial solution which works, but has a costly impact on motivation. Eliezer wrote that it is okay to accept some emotions, if they are compatible with the rational thoughts. But the full solution would be to let our thoughts drive our emotions. Not merely to accept the rational feeling, if it happens to exist, but to engineer it, by changing our internal and external environments. (On the other hand, this is just another way how insufficiently rational people could hurt themselves.)

Comment author: John_Maxwell_IV 04 November 2014 10:09:29AM 4 points [-]

I linked to this a few days ago. I've been experimenting with using the technique described over the past few days, and it seems to work pretty well. For example, trying to spend all of my mental bandwidth noticing good things (re-noticing good things I already noticed was allowed) seemed to get me out of a depressive funk in an hour or two. The technique also has some other interesting benefits: some of the positive things I notice are good things that I did, which has the effect of reinforcing those behaviors, and by noticing the good things that are going on in social interactions, I enjoy myself more and become more relaxed and fun to be around (in theory at least--only limited experience with this one thus far), and sometimes I get valuable ideas through realizing that something that initially seemed bad actually has a hidden upside (reminds me of research I've read about lucky people).

At this point, I'm left wondering why humans evolved to be so gosh-darn negative all the time. It feels like there must be some hidden upside to being negative that just hasn't occurred to me.

Comment author: Viliam_Bur 04 November 2014 11:06:03AM *  4 points [-]

I like that link!

At this point, I'm left wondering why humans evolved to be so gosh-darn negative all the time. It feels like there must be some hidden upside to being negative that just hasn't occurred to me.

Some guesses:

Compared with the rest of the nature, and even with large parts of humankind, we live incredibly lucky lives. Our monkey brains were not designed for this, they are probably designed to keep a certain level of unhappiness, so they invent some if they don't enough from outside. Similarly how our immune systems in absence of parasites develop alergies. Our mechanisms for fighting problems do not have an off switch, because in nature there was no reason to evolve one.

There is probably also some status aspect in this. If you are low status, you better don't express too much happiness in front of higher status monkeys, because they will punish you just to teach you where is your place. That's probably because low status itself makes people unhappy, so if you are not unhappy enough, it seems like you are claiming higher status.

I would expect many people to provide a rationalization: "But if I will be happy, that will make me less logical! And I will not be motivated to improve things." (But I think that is nonsense, because unhappiness is also an emotion, and also interferes with logic. And unhappy people probably have less "willpower" to improve things.)

Comment author: John_Maxwell_IV 04 November 2014 11:32:45PM *  3 points [-]

I'll use the term "threat" for a problem where avoidance and/or submission is a good way of dealing it.

If a tiger is known to live in a particular part of a forest, that is a threat: Avoiding that part of the forest is a good way of dealing with the problem. If I take part in a hunting expedition and I don't do my part because I'm too much of a coward, that is also a threat: If I act as if nothing happened and eat as much food as I want, etc. then my fellow tribespeople will think I'm an obnoxious jerk and I'll be liable to get kicked out. So submission is a good way of dealing with this problem.

If I'm hungry or sleepy or I have homework to do or I need to get a job, those are not threats, even though they have potentially dire consequences: ignoring these problems is not going to make them go away.

Hypothesis: the EEA was full of threats according to my definition; the modern world has fewer such threats. However, we're wired to assume our environment is full of threats. We're also wired to believe that if a problem is a serious one, it's likely a threat. So we're more likely to exhibit the avoidance behavior for serious problems like finding a job than for trivial ones like solving a puzzle.

(I like the idea of co-opting the word "threat" because then you can repeat phrases like "this is not a threat" in your internal monologue to reassure yourself, if you've checked to see if something is a threat and it doesn't seem to be.)

Comment author: Viliam_Bur 05 November 2014 09:50:58AM 3 points [-]

This seems correct. In a jungle, the cost of failure is frequently death. In our society, when you live an ordinary life (so this does not apply to things like organized crime or playing with explosives), the costs are much smaller, and there is much fun to be gained. But our brains are biased to believe they are in the jungle; they incorrectly perceive many things as tiger equivalents.

Comment author: John_Maxwell_IV 05 November 2014 04:51:52PM 2 points [-]

This is kind of nitpicky, but "the cost of failure is frequently death" is not the same as "avoidance and/or submission is a good way of dealing with the problem". It's not enough to show that in the EEA things could kill you... you have to show that they could kill you, and that trying hard not to think about them was the best way to avoid having them kill you.

Comment author: John_Maxwell_IV 08 November 2014 06:20:02AM *  1 point [-]

I found some interesting thoughts in the book Learned Optimism about the evolutionary usefulness of pessimism:

The benefits of pessimism may have arisen during our recent evolutionary history. We are animals of the Pleistocene, the epoch of the ice ages. Our emotional makeup has most recently been shaped by one hundred thousand years of climactic catastrophe: waves of cold and heat; drought and flood; plenty and sudden famine. Those of our ancestors who survived the Pleis- tocene may have done so because they had the capacity to worry incessantly about the future, to see sunny days as mere prelude to a harsh winter, to brood. We have inherited these ancestors' brains and therefore their ca- pacity to see the cloud rather than the silver lining.

...

Pessimism produces inertia rather than activity in the face of setbacks.

If the weather is very cold and your brain's probability estimate of finding any game in the frost is low, maybe inactivity really is the best approach. But if I, as a modern human, am not calorie-constrained, then inactivity seems less wise.

Comment author: [deleted] 09 November 2014 12:32:45PM 1 point [-]

At this point, I'm left wondering why humans evolved to be so gosh-darn negative all the time. It feels like there must be some hidden upside to being negative that just hasn't occurred to me.

It's not so much that there's an upside to negativity as that continued positivity is evolutionarily useless. Evolution wants you to "chase the dragon" of steep, exciting highs rather than maintain a reasonably happy steady-state or, worse yet from Its perspective, "go full transhuman" and rewrite your own mind-design to bring Being Happy and Doing the Right Things into perfect alignment (which we can't do yet, but probably will be able to someday).

Comment author: Viliam_Bur 04 November 2014 11:58:02AM 1 point [-]

For a community-scale solution, this article seems correct.

I expect spats, arguments, occasional insults, and even inevitable grudges. We've all done that. But in the end, I expect you to act like a group of friends who care about each other, no matter how dumb some of us might be, no matter what political opinions some of us hold, no matter what games some of us like or dislike.

One of the first things I learned when I began researching discussion platforms two years ago is the importance of empathy as the fundamental basis of all stable long term communities.

Hate is easy to recognize. Cruelty is easy to recognize. You do not tolerate these in your community, full stop. But what about behavior that isn't so obviously corrosive? What about behavior patterns that seem sort of vaguely negative, but … nobody can show you exactly how this behavior is directly hurting anyone?

Disagreement is fine, even expected, provided people can disagree in an agreeable way. But when someone joins your community for the sole purpose of disagreeing, that's Endless Contrarianism. If all a community member can seem to contribute is endlessly pointing out how wrong everyone else is, and how everything about this community is headed in the wrong direction – that's not building constructive discussion – or the community.

Axe-Grinding is when a user keeps constantly gravitating back to the same pet issue or theme for weeks or months on end. This rapidly becomes tiresome to other participants who have probably heard everything this person has to say on that topic multiple times already.

Griefing is when someone goes out of their way to bait a particular person for weeks or months on end. By that I mean they pointedly follow them around, choosing to engage on whatever topic that person appears in, and needle the other person in any way they can, but always strictly by the book and not in violation of any rules… technically.

In any discussion, there is a general expectation that everyone there is participating in good faith – that they have an open mind, no particular agenda, and no bias against the participants or the topic. While short term disagreement is fine, it's important that the people in your community have the ability to reset and approach each new topic with a clean(ish) slate. When you don't do that, when people carry ill will from previous discussions toward the participants or topic into new discussions, that's a grudge. Grudges can easily lead to every other dark community pattern on this list. I cannot emphasize enough how important it is to recognize grudges when they emerge so the community can intervene and point out what's happening, and all the negative consequences of a grudge.

Comment author: passive_fist 04 November 2014 09:28:22PM *  1 point [-]

Perhaps it would be best to learn from psychology. Psychology has shown that there's very little you can do to make yourself 'more rational.' Knowing about biases does little to prevent them from happening, and you can't force yourself to enjoy something you don't enjoy. Further, it takes a lot of conscious, slow effort to be rational. In the face of real-life problems, true rationality is often pretty much impossible as it would take more computing power than available in the universe. It's pretty clear that our irrationality is a mechanism to cope with the information overload of the real world by making approximate guesses.

It's because of things like this that I think maybe LW has gone severely overboard with the instrumental rationality thing. Note that knowing about biases is a noble goal that we should strive towards, but trying to fix them often backfires. The best we can usually hope for is to try to identify biases in our thinking and other people's.

But anyway, a lot of the issues of this site could simply be a matter of technical fixes. It was never really a good idea to base a rationality forum on a reddit template. Instead of the 'everyone gets to vote' system, I prefer the system where there are a handful of moderators. Moderators could be selected by the community and they would not be allowed to moderate discussions they themselves are participating in. This is the system that slashdot follows and I think it seems to work extremely well.

Comment author: shminux 04 November 2014 11:12:18PM 3 points [-]

you can't force yourself to enjoy something you don't enjoy

This particular point is demonstrably false, at least as a general one: people acquire taste for foods and activities they previously disliked all the time.

Knowing about biases does little to prevent them from happening

There are plenty of (anecdotal) examples to the contrary. I find myself thinking something like "am I being biased in assuming..." all the time, now that I have been on this forum for years. I heard similar sentiments from others, as well.

it takes a lot of conscious, slow effort to be rational

That's true enough. But it is also true in general for almost every System 2-type activity (like learning to drive), until it gets internalized in System 1.

In the face of real-life problems, true rationality is often pretty much impossible as it would take more computing power than available in the universe.

Indeed it is impossible to get a perfectly optimal solution, and one of the biases is the proverbial "analysis paralysis", where an excuse for doing nothing is that anything you do is suboptimal. However, an essential part of being instrumentally rational is figuring out the right amount of computing power to dedicate to a particular problem before acting.

a lot of the issues of this site could simply be a matter of technical fixes

Indeed a different template could have worked better. Who knows. However, a decision had to be made within the time and budget constraints, and, while suboptimal, it was good enough to let the site thrive. See above about bounded rationality.

This is the system that slashdot follows and I think it seems to work extremely well.

Except Reddit is clearly winning, in the "rationalists must win" sense, and Slashdot has all but disappeared, or at least has been severely marginalized compared to its late 90s heydays .

Comment author: passive_fist 05 November 2014 04:35:04AM 3 points [-]

This particular point is demonstrably false, at least as a general one: people acquire taste for foods and activities they previously disliked all the time.

I've done this a lot. Each time I did, it wasn't because I forced myself, it was because I saw some new attractive thing in those foods or activities that I didn't see before. Perception and enjoyment aren't constant. People are more likely to try new activities when they are in a good mood (for instance). Mood alters perception. In that sense I actually agree with Villiam_Bur. You can get more people to become 'rationalists' through engaging and fun activities. But you have to ask yourself what the ultimate goal is and if it can succeed for making people more rational.

However, an essential part of being instrumentally rational is figuring out the right amount of computing power to dedicate to a particular problem before acting.

The most powerful 'subsystem' in the brain is the subconscious system 1 part. This is the part that can bring the most computational power to bear on a problem. Making an effort to focus your system 2 cognition on solving a problem (rather than simply doing what comes instinctively) can backfire. But it gets worse. There's no 'system monitor' for the brain. And even if there was, if you go even more meta, optimizing resource allocation for solving problem X may itself be a much harder problem than solving X using the first method that comes to mind.

Except Reddit is clearly winning, in the "rationalists must win" sense, and Slashdot has all but disappeared, or at least has been severely marginalized compared to its late 90s heydays .

I know it's an extremely subjective opinion, but it seems to me that the slashdot system reduces spread of misinformation and reduces downvote fights (and overall flamewars). As for why slashdot has shrunk as a community, I suppose it's partly because reddit has grown, and reddit seems to have grown because of the 'digg exodus' (largely self-inflicted by digg) and the subreddit idea. Remember that there used to be many news aggregators (like digg) that have all but disappeared.

The idea here shouldn't be "let's adopt the most popular forum system", it should be "let's adopt the forum system that is most conducive to the goals of the community." And we have at least one important data point (Eliezer) indicating the contrary.

Comment author: bogus 07 November 2014 12:51:18AM *  1 point [-]

The idea here shouldn't be "let's adopt the most popular forum system", it should be "let's adopt the forum system that is most conducive to the goals of the community."

Disregarding your use of the word "community" for what's best described as an online social club, who's to say that we're not doing this already? The "forum system that is most conducive" to our goals might well be a combination of one very open central site (LessWrong itself) supplemented by a variety of more private sites that discuss rationality in different ways, catering to a variety of niches. Not just Eliezer's Facebook page, but including things like MoreRight, Yvain's blog, Overcoming Bias, Give Well etc.

Comment author: Vulture 08 November 2014 06:33:11PM 4 points [-]

The "forum system that is most conducive" to our goals might well be a combination of one very open central site (LessWrong itself) supplemented by a variety of more private sites that discuss rationality in different ways, catering to a variety of niches. Not just Eliezer's Facebook page, but including things like MoreRight, Yvain's blog, Overcoming Bias, Give Well etc.

This makes me a little suspicious as a solution, only because there doesn't seem to be anything particularly special about it besides being precisely the system that is already in place.

Comment author: Viliam_Bur 04 November 2014 09:56:12PM *  2 points [-]

you can't force yourself to enjoy something you don't enjoy

Perhaps "force" isn't the right approach (and the whole "willpower" is just a red herring). But don't we have many examples where people changed their emotions because of an external influence? Charismatic people can motivate others. People sometimes like something because their friends like it. Conditioning.

I believe with a strategic approach people can make themselves enjoy something more. It may not be fast or 100% reliable or sufficiently cheap, but there is a way. A rational person should try finding the best way to enjoy something, if enjoying that thing is desirable. (For example, people from Vienna meetup are going to gym together after the next meetup, so they can convert enjoying a rationalist community into enjoying exercise.)

Comment author: Lumifer 04 November 2014 09:35:44PM *  2 points [-]

Psychology has shown that there's very little you can do to make yourself 'more rational.'

Citation needed.

Not to mention that what an average person can or can not do isn't particularly illuminating for non-representative subsets like LW.

maybe LW has gone severely overboard with the instrumental rationality thing

I am not sure that is possible. Instrumental rationality is just making sure that what you are doing is useful in getting to wherever you want to go. What does "severely overboard" mean in this context?

Comment author: passive_fist 04 November 2014 11:07:17PM *  1 point [-]

Citation needed.

Read Dan Kahneman's work. He's spent his entire lifetime studying this and won a nobel prize for it too. A good summary is given in http://www.newyorker.com/tech/frontal-cortex/why-smart-people-are-stupid Here's an excerpt:

'as the scientists note, “people who were aware of their own biases were not better able to overcome them.” This finding wouldn’t surprise Kahneman, who admits in “Thinking, Fast and Slow” that his decades of groundbreaking research have failed to significantly improve his own mental performance. “My intuitive thinking is just as prone to overconfidence, extreme predictions, and the planning fallacy”—a tendency to underestimate how long it will take to complete a task—“as it was before I made a study of these issues,” he writes. '

Not to mention that what an average person can or can not do isn't particularly illuminating for non-representative subsets like LW.

In fact it is; there is no substantial difference when it comes to trying to control biases between highly educated and non-educated people.

I am not sure that is possible. Instrumental rationality is just making sure that what you are doing is useful in getting to wherever you want to go. What does "severely overboard" mean in this context?

There is nothing wrong with 'making sure that what you are doing is useful in getting to wherever you want to go'. The problem is the idea of trying to 'fix' your behavior through self-imposed procedures, trial & error, and self-reporting. Experience shows that this often backfires, as I said. It's pretty amazing that "I tried method X, and it seemed to work well, I suggest you try it!" (look at JohnMaxwellIV's comment below for just one example) is taken as constructive information on a site dedicated to rationality.

Comment author: Lumifer 05 November 2014 01:08:15AM *  4 points [-]

First, rationality is considerably more than just adjusting for biases.

Second, in your quote Kahneman says (emphasis mine): "My intuitive thinking is just as prone...". The point isn't that your System 1 changes much, the point is that your System 2 knows what to look for and compensates as best as it can.

In fact it is; there is no substantial difference when it comes to trying to control biases between highly educated and non-educated people.

Sigh. Citation needed.

The problem is the idea of trying to 'fix' your behavior through self-imposed procedures, trial & error, and self-reporting.

And what it the problem, exactly? I am also not sure what the alternative is. Do you want to just assume your own behaviour is immutable? Magically determined without you being able to do anything about it? Do you think you need someone else to change your behaviour for you? What?

Comment author: gwern 04 November 2014 11:15:59PM 3 points [-]

A good summary is given in http://www.newyorker.com/tech/frontal-cortex/why-smart-people-are-stupid Here's an excerpt:

'as the scientists note, “people who were aware of their own biases were not better able to overcome them.” This finding wouldn’t surprise Kahneman, who admits in “Thinking, Fast and Slow” that his decades of groundbreaking research have failed to significantly improve his own mental performance. “My intuitive thinking is just as prone to overconfidence, extreme predictions, and the planning fallacy”—a tendency to underestimate how long it will take to complete a task—“as it was before I made a study of these issues,” he writes. '

Disagree. See comments in http://lesswrong.com/lw/d1u/the_new_yorker_article_on_cognitive_biases/

Comment author: passive_fist 04 November 2014 11:26:59PM 2 points [-]

I'm not talking about the bias blind spot. I agree that more educated people are better able to discern biases in their own thoughts and others. In fact that's exactly what I said, not once but two times.

I'm talking about the ability to control one's own biases.

Comment author: Lumifer 05 November 2014 01:13:53AM *  3 points [-]

I'm talking about the ability to control one's own biases.

Are you distinguishing between "control one's own biases" and "adjusting and compensating for one's own biases"?

Comment author: gwern 04 November 2014 11:53:51PM *  2 points [-]

I agree that more educated people are better able to discern biases in their own thoughts and others...I'm talking about the ability to control one's own biases.

Huh? So what are more intelligence - and more educated - people doing, exactly, if not controlling their biases?

Comment author: passive_fist 04 November 2014 04:00:47AM *  4 points [-]

Thanks. That sounds a bit more like trying to get "out of the spotlight", if you get what I mean. Which I can understand. But it's possible that he's just being polite.

Comment author: Vulture 08 November 2014 06:35:43PM 1 point [-]

Good point. Given that Eliezer seems somewhat prone to saying moderately embarrassing things, it makes sense that he would want to hold discussions somewhere that's not directly associated with PR-delicate organizations and communities, and where he might be more able to better control how public things are.

Comment author: Lumifer 09 November 2014 03:15:51AM 1 point [-]

I hope you're not calling LW "PR-delicate"...

Comment author: Evan_Gaensbauer 07 November 2014 11:13:02AM *  4 points [-]

On the other hand, I'm kinda saddened that Eliezer appears to have given up on LessWrong

Less Wrong is not as shiny a beacon as it once was. It started fading by the time I got here. However, I'm not lamenting, because for me it remains a beacon nonetheless. For example, So8res, a.k.a. Nate Soares, still posts here regularly enough. He's a MIRI researcher. What's great about that is the flow of causality: like Luke Muehlhauser, he didn't end up posting on Less Wrong because he works for MIRI; he's working for MIRI because of what he's posted on Less Wrong. That's all inside of the last year alone. He doesn't post here as frequently, but his posts are still why I come here weekly. Now, I don't mean to use the MIRI as an applause light. Honestly, I don't know too much about their work outside of what I've gleaned from off-hand discussions here on Less Wrong. However, the folks running it sure seem interesting, and just how one user was able to transform his own life with Less Wrong, then became the best new contributor to the site in 2014 by recording that transformation, and then working for the MIRI is an example of what others of us can achieve as aspiring rationalists. Maybe Eliezer is lamenting that the rest of us aren't producing content as awesome as his, and are instead waiting for him to come back. I figure he'll come back if we double down in realizing he started Less Wrong so we could learn to be awesome, not tend to his every word, and follow through on 'going forth and creating the art'.

Comment author: gwillen 03 November 2014 09:30:13PM 2 points [-]

I'm honestly not too sad about that. After The Redacted Incident, I think the community lost a lot of trust in Eliezer. (I know I did.) If he wants a space where he can moderate according to his whims, LessWrong need not be that space. Frankly I trust the mods here more than I trust him to make good mod decisions.

Comment author: the-citizen 05 November 2014 12:21:02PM *  3 points [-]

What in particular was wrong with his handling of this incident? I'm not aware of all the details of his handling so its an honest question.

Comment author: gattsuru 05 November 2014 05:48:57PM 6 points [-]

Most obviously, the Streisand effect means that any effort used to silence a statement might as been used to shout it from the hilltops. The Basilisk is very heavily discussed despite its obvious flaws, in no small part because of the context of being censored. If we're actually discussing a memetic hazard, that's the exact opposite of what we want.

There are also some structural and community outreach issues that resulted from the effort and weren't terribly good. Yudkowsky's discussed the matter from his perspective here (warning: wall of text).

((On the upside, we don't have people intentionally discussing more effective memetic hazards in the open in contexts of developing stronger ones, nor trying to build intentional decision theory traps. There doesn't seem to be enough of a causative link to consider this a benefit to the censorship, though.))

Comment author: Vulture 08 November 2014 06:40:41PM 2 points [-]

On the upside, we don't have people intentionally discussing more effective memetic hazards in the open in contexts of developing stronger ones, nor trying to build intentional decision theory traps.

I just realized that it has become pretty low-status to spend time talking about decision-theoretic memetic hazards around here, which might be a good thing.

Comment author: the-citizen 08 November 2014 11:42:00AM 2 points [-]

Cheers, that all seems to make sense. I wonder if the Basilisk with its rather obvious flaws actually provides a rather superb illustration of how memetic hazard works in practice, and so doing so provides a significant opportuntity of improving how we handle it.

Comment author: jaime2000 04 November 2014 03:30:33AM 10 points [-]

Oh, be serious. I wasn't crazy about Eliezer's handling of the basilisk, either, but ubermenschen do not grow on trees. Who do we have around who is willing and able to become LessWrong's great leader now that he has left? All of the potentially strong leaders I can think of are busy running their own websites, projects, and/or communities.

Comment author: Lumifer 04 November 2014 03:38:49AM 12 points [-]

Any particular reason you feel the need for a Great Leader?

Comment author: MathiasZaman 04 November 2014 06:38:42PM 10 points [-]

I wouldn't say Less Wrong needs a single leader, but in general good communities tend to have figures that can serve as "pillars of the community." They tend to help group cohesion and provide good content. They can also serve the role of tutor for new people or by mapping out the direction a community can/should go in.

Comment author: gwillen 06 November 2014 12:15:31AM 8 points [-]

I think we have some excellent pillars. For example, I see Yvain as a pillar, more than Eliezer.

Comment author: Vulture 08 November 2014 06:38:13PM 3 points [-]

I tend to think of Eliezer, Yvain, and Gwern as the three pillars of our community. Their styles are all very different but they're all enormously respected.

Comment author: gwillen 09 November 2014 07:13:27AM 1 point [-]

I actually almost mentioned Gwern along with Yvain, so I'd tend to concur.

Comment author: Brillyant 06 November 2014 12:32:06AM 1 point [-]

Yeah but he's got his own blog.

Comment author: gwillen 06 November 2014 12:51:39AM 2 points [-]

Yeah, and I'm much sadder that Yvain doesn't post to LW as much as he used to. I'd love to hear from him about why. (At least I'd love it if he'd post links or crosspost.)

Comment author: Douglas_Knight 06 November 2014 05:52:21PM *  2 points [-]

Yvain doesn't post to LW because he finds it too stressful. Partly this the stress of the watching the number after posting, but mainly the uncertainty ahead of time about whether his posts are good enough or appropriate.

Added: I was probably thinking of this comment, but it doesn't mention karma.

Comment author: Brillyant 08 November 2014 03:05:38PM 1 point [-]

Why does it matter where he writes?

Comment author: CellBioGuy 04 November 2014 04:26:23AM 4 points [-]

More to the point, what's so Great about him?

Comment author: solipsist 03 November 2014 09:41:11PM 3 points [-]

What is the Redacted Incident?

Comment author: CronoDAS 03 November 2014 10:43:52PM 10 points [-]

Is that the one in which a post was deleted as a memetic hazard?

Comment author: [deleted] 04 November 2014 12:00:12AM 9 points [-]

Starts with 'B' and ends with 'asilisk', I'm presuming.

Comment author: [deleted] 08 November 2014 08:16:56PM 1 point [-]

I wouldn't be terribly weirded out if he had been writing it on say yudkowsky.net, but Tumblr of all places? What the what?

Comment author: Dias 04 November 2014 12:21:39AM 12 points [-]

I recently asked about the ethics of writing articles explaining how people applied the dark arts in practice. Hopefully, such an article would help people resist those dishonest approaches more than it would aid people in employing them.

So here you go: How to Pitch a Growth Stock: Cognitive Bias Edition. I'm not sure of what LW thinks about cross-posting in general, so here is just a highlight:

The key principle here is the conservation of conservativeness. You want an estimate for them that is both very large and sounds conservative. To do this, you take advantage of scope insensitivity and arbitrage between the TAM stage and the company-specific stage. By making the company-specific stages (market share, profit margin, valuation) sufficiently conservative sounding, you can get away with an aggressive TAM [Total Addressable Market] estimate while keeping the whole thing sounding conservative. Scope-insensitivity means you can increase the TAM estimate at a lower cost of conservativeness than you can the company-specific elements, so there are gains from trade.

So once you’ve multiplied your TAM, market share, profit margin and valuation, you come up with an estimate for what this company could be worth in the future. However, you now deny that this is an estimate. Instead, it’s just an idea of the size of the market – you don’t actually expect they’ll reach it. This explicit denial protects you against any accusations of over-optimism, but you’ve successfully primed your audience on a really high number. If market sentiment is a battle between greed and fear, you’ve helped the greed side.

And a crucial subtlety – that valuation that you didn’t make is what the stock might be worth in the future. Because of the time value of money, you would need to discount that back to get to a current valuation. Since it credibly might take 10 years for the market to mature, even with a moderate 10% discount rate your valuation should really take a 61% hit. But by denying it was a valuation, you’ve avoided this step.

Comment author: Gunnar_Zarncke 04 November 2014 10:42:26PM 2 points [-]

There are quite a few cross-posts - at least in Discussion. If it's on-topic and you clearly indicate the cross-post (linking to it) I appears to be OK. Note that I can't judge your post as I'm neither deeply interested nor versed in this topic. Length and topic do seem OK though.

Comment author: advancedatheist 03 November 2014 02:58:16PM 11 points [-]

You still have time to register for the END DEATH Cryonic Convention in Laughlin, Nevada, this coming week end:

http://venturist.info/conventions.html

Comment author: Artaxerxes 03 November 2014 12:51:41PM *  9 points [-]

A Story on MIRI in the Financial Times.

Luke wrote a post on MIRI's blog acknowledging the story and making a few clarifications.


FAI concerns seem to be getting more and more high profile lately. MIRI, too, seem more competent now than ever, especially when compared to how they were only a few years ago. Am I alone in thinking these kinds of thoughts? Do others feel like these trends will continue?

Comment author: CellBioGuy 03 November 2014 03:31:19PM 2 points [-]

Let the hype curve for certain recent advances in computer technology flatten out; the references will vanish again.

Comment author: iarwain1 03 November 2014 04:26:49PM *  7 points [-]

I enjoy taking long walks outside, but it's starting to get cold out. I'd like to continue my walks, but I need better protective gear.

People who live in cold climates: How do you dress up to stay warm for long periods outside when it's freezing / windy / snowing? What advice would you give for choosing appropriate clothing? Any specific brands you'd recommend? Any links to guides for choosing appropriate clothing?

My area (Baltimore, MD) doesn't usually get much colder than around 0 degrees Fahrenheit even with the wind chill, so I don't need the type of gear that really cold climates require.

Comment author: wadavis 03 November 2014 05:43:53PM *  12 points [-]

If you want to be comfortable for an extended period the key is to have insulation everywhere.

  • Find boots that keep your feet dry and warm, use thick socks. You can cheap out on everything but boots, buy good boots.

  • Get two layers on your legs, long underwear and pants might cut it, but ski pants make a night and day difference.

  • Find a coat that is not drafty, if it is not warm enough, layer sweaters and long sleeve shirts until it is.

  • Toque (I've heard them called beanies) and scarf. Always cover your head and neck.

  • Gloves or mitts, go overboard on these nothing ruins your fun like cold hands. Wool is always warmer than it looks.

I touched on layering a few times, if you are not familiar with it it is the secret to staying warm (and comfortable, if the day warms up you just shed layers). Layers trap warm air and become more than a sum of the parts, for your core you don't need high quality attire, just something to block the wind and a few layers to trap air.

Comment author: IlyaShpitser 04 November 2014 11:28:33AM *  2 points [-]

Seconding much of this advice, especially high quality attire for the feet and the head. See also Suvorov's famous saying: "keep your stomach hungry, your head cool, and your feet warm." Russian flappy "Ushanka" hats (especially from real fur) are amazing. I am still trying to figure out a good compromise between hand dexterity and warmth, probably some high tech skiing gloves exist for this.


Qualifications: once visited relatives in Novosibirsk for Christmas.


edit: re: gloves: you know, it occurs me a simple thing you can do is have a kind of combination glove/mitten, where you have a regular thin glove but with an outer fur mitten pocket sown around it, so you are free to take the glove out of there if needed to manipulate something, or keep the gloves in the mitten for warmth if you just need to grasp something, like ski sticks or public transport handlebars.

I wonder if anyone invented that.

Or, you know, just get mittens and gloves.

Comment author: wadavis 04 November 2014 03:12:07PM 4 points [-]

These are the mittens you are looking for.

Comment author: Metus 03 November 2014 04:34:13PM 9 points [-]

0 degrees Fahrenheit

For our readers who like to use SI units: That is about -17.7°C

The trick to surviving in colder climates is layering. T-Shirt plus shirt plus pullover plus a good winter jacket should do the trick. Some people like to layer trousers but for me a good pair of jeans does the trick. Look for good winter boots as feet loose a lot of heat. Cover your head with a hat, wear a scarf. Experiment with these things as there is comfort and aesthetics to be considered. Wear gloves or start getting used to walking with your hands in your pockets. If you do wear gloves take them off to shake someones hand, anything else is extremely rude.

Comment author: othercriteria 03 November 2014 05:53:53PM 5 points [-]

Some people like to layer trousers

A simple way to do this is flannel-lined jeans. The version of these made by L.L. Bean have worked well for me. They trade off a bit of extra bulkiness for substantially greater warmth and mildly improved wind protection. Random forum searches suggest that the fleece-lined ones are even warmer, but you lose the cool plaid patterning on the rolled up cuffs.

Comment author: fezziwig 03 November 2014 08:16:53PM 2 points [-]

Anecdote: I have several of these and love them. If you live in the Frozen North, I recommend them highly.

Comment author: Luke_A_Somers 03 November 2014 07:47:28PM 8 points [-]

Long underwear is less ridiculous than actually layering trousers.

Don't forget to layer your socks! Feet are really important.

Comment author: Username 03 November 2014 10:58:50PM 4 points [-]

Pajama pants are an effective, more socially normal substitute for long underwear underneath jeans or trousers.

Comment author: RomeoStevens 03 November 2014 11:56:56PM 5 points [-]

where do you live that long underwear would come up in such a situation as to be "socially abnormal"?

Comment author: BrassLion 04 November 2014 04:20:43AM 4 points [-]

More to the point, what are you doing that people both know you're wearing long underwear and care about it to any substantial degree?

Comment author: zedzed 03 November 2014 06:37:41PM 7 points [-]

One approach is to acclimate. I live in central NY and walked home from school (~30 minutes) every day of the year in t-shirt and jeans. My body adapted to the cold so, even though my ears and, to a lesser extent, fingers were being frozen off, I was sufficiently warm.

The one thing you don't want to do is overdress so you wind up sweating. In particular, you're going to want to wear less than you would if you were just standing around outside. If you're going to be at different periods of activity, then layering is a must so you can layer down before the activity and layer up after. If not, layering is still a good idea.

Boots should be insulated, waterproof, and thick-soled. Mittens have less surface area than gloves and therefore keep hands warmer. Hats should cover ears. Pants should go most of the way down boots and belong on the outside, so if you walk through snow, it doesn't get caught on top of the boot and fall in, and generally benefit from being waterproof. Avoid cotton (it absorbs and holds onto moisture and loses all insulative properties when wet.)

This is likely overkill. You are going from indoors to plowed streets to indoors. There's things that you must do if you're going to survive multi-day winter camping trips, but "put on things to cover parts that are getting cold" is all you really need.

Comment author: Luke_A_Somers 03 November 2014 07:48:59PM 8 points [-]

The important thing about avoiding sweating is, you need to notice that you're too warm and unbundle just a little so you aren't, before you get wet. Once you're sweating, it's too late and you're kind of screwed.

Comment author: hyporational 04 November 2014 03:11:21PM *  3 points [-]

Simple, durable and sufficiently stylish, good from -10 down to -40 Celsius if I'm moving:

  • wool coat, long so you don't necessarily need long underpants
  • thick wool sweater with buttons, t-shirt or shirt with collar underneath
  • loose leather mittens with wool lining, fingerless gloves underneath
  • wool cap that reaches the bottom of your ear lobes, wool scarf
  • slightly thicker jeans than usual, no long underpants needed with long coat
  • thick leather boots with plenty of room for your toes, wool socks on top of normal socks if really cold
Comment author: L29Ah 04 November 2014 09:39:10PM 2 points [-]

Polartec as a base/insulating layers all over the body, anything {wind,water}proof or +1 layer on top of them if i'm planning to go slow (like, <130bpm), otherwise nothing or a decent (>15l/m²/day) steam-permeable waterproof membrane if the rain or powerful wind is probably an issue. Does the job better than wool as it doesn't get wet. Balaklava on my head. // Russia/St. Petersburg here.

Comment author: ChristianKl 03 November 2014 11:24:13PM 2 points [-]

Dressing warm enough depends on your own thermoregulation. If you frequently feel cold, doing sports can help you in a natural way to feel warmer.

Feeling warm enough is quite valuable. In addition to simply bad, feeling cold leads to bad body language, that can make you come across as closed.

When it's really cold I have found long underwear to be important. A jacket simply does nothing against lowing heat via your legs.

Comment author: Lumifer 03 November 2014 05:42:55PM *  3 points [-]

You're overthinking it -- just get a jacket.

If you want to geek out about stuff like that :-) the recommendations depend on how heavily you sweat and so how good must your clothing be at getting rid of excess moisture produced by your body. The usual recommendations here go along the lines of "don't wear cotton" (aka "cotton kills") and "have a breathable shell".

In the case of Baltimore, if you don't anticipate walks in the rain, get a fleece and a down jacket, zip up or unzip as needed. If you do, you'll need a waterproof shell (Gore-Tex or equivalent). Or an umbrella.

Comment author: kalium 04 November 2014 05:43:07AM 1 point [-]

Layering is good, but it's much easier to apply to the torso and arms than the legs. So a coat that goes at least down to your knees is very handy. I also recommend wool socks and mittens, since unlike many fibers wool is just as insulating when wet. Source: used to live in Boston.

Comment author: pan 03 November 2014 03:31:46PM 7 points [-]

I'm going to be graduating with my PhD in physics (theory) this coming spring and am beginning to look for jobs.

Any tips? Any mistakes you made when looking for jobs that you can tell me about? For those already with jobs in the technology industry: if you could go back in time what would you change about the way you searched for jobs?

Less likely but still worth asking: if you happen to know of a job in either the Baltimore/Washington/Virginia area or in the Bay area that I might be qualified for don't hesitate to tell me about it.

Comment author: Punoxysm 03 November 2014 07:56:45PM 5 points [-]

First of all, don't neglect your university's resources. Network like hell. Find out where other recent graduates ended up. Ask all professors who will give you the time of day if they have industry connections they would refer you to. Go to the career center. Go to career fairs. Print out tons and tons of resumes.

Speaking of resumes, what are your skills other than theoretical physics? And how wedded to doing physics in your job are you? If you can reasonably put R or MATLAB or even SQL on your resume, let alone proper programming languages or projects, you'll be opening up worlds of opportunities as an analyst or data scientist. Learn about how to use LinkedIn. Optimize your resume for visibility to keyword-based recruiters.

I strongly recommend a job search approach where you try to get as many responses as you can, THEN prune down. You'll get interviewing experience and you'll get to see some options you might not have considered.

Comment author: pan 04 November 2014 01:24:44AM 3 points [-]

I'm not at all wedded to doing physics in my next job, I'd be happy to switch to something more engineering/computer based or even (slightly less so) financial.

Skills wise I try to stress that I have multiple first authored publications (so I'm decent at writing) and several presentations at conferences and to funding agencies (good at speaking). Outside of that though I am very proficient at Mathematica and have what I'd call 'hobbyist' knowledge of python (I can write small scripts and programs, use libraries like SciPy).

This leaves me in a spot where I'm almost qualified for data science positions but not quite what they're looking for because I don't have enough programming experience.

Thanks for the tips, I hadn't thought about approaching other professors besides my advisor for networking purposes.

Comment author: Punoxysm 04 November 2014 02:57:36AM 3 points [-]

Okay. Sounds like you should consider finance/quant positions (distinguish the ones that expect C++ knowledge from those that are looking for the math background), technical writing, data science, and maybe McKinsey style consulting/analyst positions (lots of companies have internal positions like this, as do VC firms).

You have a while, so you could easily give yourself a crash course in SQL and bolster your python, which would put you into the "good at programming for a non-programmer" field in most people's estimation.

I mention consulting, because it does involve a lot of writing and presenting, you'll learn a lot about business and open up tremendous career opportunities. If you have kind of a workaholic personality, it could be a good decision (but if travel and stress and unbreakable deadlines aren't your thing, maybe steer clear). Similar positions internal to companies are lower-stress but lower-opportunity. Your degree is definitely an asset in applying too.

If you're a citizen and don't mind it, the department of defense consulting complex (MITRE is an interesting company) might be interesting to look at.

Comment author: lmm 03 November 2014 07:39:04PM 4 points [-]

My experience is that the salary for your first job is more important than you think, because future salaries are always anchored off your previous one. So for the first job in particular it's worth going for a less nice but higher paying job (also, hedonic treadmill).

Keep your applications targeted. I'll normally apply to less than 10 places, but each will be one where I've read about the company and tailored my cover letter. I've found this more effective than spamming out my CV to a lot of places.

I've had success with and without recruiters, so I can't really say one way or the other there. That said, the best return on effort when looking for tech industry jobs is definitely Hacker News' monthly "who's hiring" thread.

Some companies will be shockingly unreasonable. Just be prepared for that to happen, and respond appropriately; don't assume there's some kind of EMH in play where anything a company does has to be sensible.

Get two offers. Don't stop looking just because you have an offer or two. You have a lot more leverage when you have multiple offers.

Trust your gut. If a place feels unpleasant, it probably is unpleasant. If the person who interviews you rubs you the wrong way, the company culture probably will (this is not true for initial phone screens, which tend to be done by someone unrelated to anything). Make sure you speak to the person who's going to be your direct manager - how you get on with them is probably going to have a much bigger impact on your workplace happiness than anything else.

Comment author: [deleted] 03 November 2014 09:14:02PM 6 points [-]

Oh my goodness are you doing it wrong. Your next employer will ask what your last salary was. Yes, of course they will ask. But woe to you if you actually answer! You have much to learn young padawan.

  • Employer: "So how much did you make at your last job?"
  • Candidate: "My salary expectation is ____."
  • Employer: "Oh I see what you did there. Well how about ..."
  • (negotiation starts here)
Comment author: gwillen 03 November 2014 09:37:15PM 4 points [-]

Unfortunately it's often not that simple, and it frequently requires Advanced Techniques. (E.g.: The recruiter is pushy and insists on a salary, and you have to use verbal judo of some kind. OR some piece of technology insists on a salary in a form, and won't let you proceed without entering one. Etc.)

Comment author: [deleted] 03 November 2014 11:55:03PM 2 points [-]

This is true, although the lesson I would draw is to build up your personal network so that you're not going through recruiters to get jobs, and specialize enough that you're not directly comparable with typical other candidates.

By the way, funny having this conversation with you! See you on friday ;)

Comment author: Nornagest 03 November 2014 07:51:40PM 4 points [-]

It is possible to de-anchor salary expectations from your old job. You just need a good excuse. Moving to an area with a high cost of living -- like, say, Silicon Valley -- is a good excuse. So is "I was working for a startup and most of my job's expected value was locked up in equity".

"My last company systematically underpaid everyone" isn't, even if your last company systematically underpaid everyone. It may be true, but the people interviewing you won't usually bother to find out, and it sounds bad either way.

Comment author: iarwain1 03 November 2014 03:38:46PM 3 points [-]

There's problems getting a physics job around the Washington area? I'd think with NASA, NSA, DoD, several large research universities (including the Johns Hopkins Applied Physics Lab), and all the large government contractors (Lockheed Martin in Bethesda MD, etc.) it would be relatively easy to find something.

Comment author: pan 03 November 2014 03:54:58PM 5 points [-]

The problem with many of the government labs is that they want post docs and not employees, and I'd rather just skip that and start as an actual employee somewhere.

In addition many of the places I've applied (many of which you listed) have very long application processes (months) which means I'm in the dark as to whether I'll get zero offers or an offer from every place which I applied. Therefore I'd like to be cautious and cultivate as many options as possible.

Lastly, I tend to get into situations like these (ones with big decisions and many unclear options) and end up realizing in retrospect that there were more interesting opportunities available than the one I took, but that I panicked and didn't properly explore the options. So I'm trying to make a serious effort of looking for and apply to 'out of the box' employment options.

Comment author: IlyaShpitser 03 November 2014 04:02:04PM 4 points [-]

Have you thought about big bucks in Si-valley or finance? I kind of envy physicists because I feel like they have the kind of math skills that lets them figure out anything from first principles.

Comment author: pan 04 November 2014 01:50:01AM 3 points [-]

I'd be happy to work in Silicon valley or finance, and I've applied to the big ones like Google and Microsoft but it's kind of tough to find companies to apply to. Another commenter recommended the HN monthly hiring post, which is a good resource but very focused on programming.

Comment author: Lumifer 03 November 2014 05:46:38PM 2 points [-]

I kind of envy physicists because I feel like they have the kind of math skills that lets them figure out anything from first principles.

Right...

Comment author: Luke_A_Somers 03 November 2014 07:46:11PM 3 points [-]

That's not quite what it feels like from the inside either. It's more like, "You're looking at this enormous noodle soup! Well, let's see what we can say with certainty, and let's poke around for useful approximations. If that doesn't work, I got nuffin'."

Comment author: IlyaShpitser 04 November 2014 12:18:07PM *  2 points [-]

Physicists tend to have very good modeling chops. A fellow in the early 1900s (Ising) was trying to come up with a model for ferromagnetism and came up with Markov random fields, basically. That is amazing to me.

Meanwhile, in psychometrics: "I know, let's model intelligence by one number!"


edit: There is some controversy about how much of this was Ising vs Ising's advisor. This does not affect my point about physicists, though.

Comment author: Luke_A_Somers 04 November 2014 02:08:03PM 1 point [-]

Right, I kind of swept that under the rug as part of approximations - as in, 'try making a seemingly overly-simple model of the individual components and see if the relevant behavior emerges'. Could have been clearer on that.

Comment author: mesolude 03 November 2014 09:17:36PM *  6 points [-]

I've recently begun to experiment with alcohol for entertainment. While intoxicated I attempt to retain my mental control despite handicaps as a challenge in rationality. This has led me to observe my thinking patterns while sober more often--to a hypothetical superrational being, humans in the best scenario must seem at least as impaired as those beings would in their version of drunkedness. Some of the things I'm hoping to test are how my ability to analyze logical propositions, assign probability to various outcomes, or determine the choice that maximizes utility decline.

While testing my physical capabilities is straightforward (line walking, raise one foot and count), testing mental capabilities is much harder and I'm struggling to think of tests that are simple enough to self-administer in a handicapped state and produce results that I can analyze then or later. This will help me answer the question of How scratched can the lens be before it can no longer can see its flaws? Any suggestions of tests would be appreciated.

Comment author: Lumifer 03 November 2014 09:31:35PM 6 points [-]

There are apps for that :-)

Comment author: hyporational 04 November 2014 02:30:27PM *  4 points [-]

I've seen worse excuses to get drunk :)

I recently did some sim racing while mildly intoxicated. I'm fairly consistent with certain car and track setups so my performance doesn't vary many tenths of a second per lap. Suprisingly getting buzzed seemed to improve my performance by several tenths for about half an hour and after that it plummeted to fairly embarrassing levels. I've felt this temporary performance boost in other tasks as well, but wouldn't have expected to measure it in a difficult motor task requiring quick reflexes and good eye-hand coordination.

Comment author: NancyLebovitz 04 November 2014 03:32:51PM 4 points [-]

I played one of my best pinball games ever when I was mildly ill. I had enough energy to play, but not enough energy to foul myself up.

Comment author: hyporational 04 November 2014 03:53:22PM *  2 points [-]

Hmmh. I definitely feel energetic at first while drinking alcohol. I wonder if being sick could be comparable to being intoxicated in the sense that both are emergencies for the body, and the body responds by releasing stress hormones, making you better at tasks straightforwardly improving survival, like some motor tasks for instance. This would improve performance until you cross the threshold where the direct bad effects of being sick or poisoned win.

Comment author: ChristianKl 03 November 2014 09:50:08PM 4 points [-]

http://www.quantified-mind.com/ provides a good test suite for mental tests.

Comment author: Gavin 04 November 2014 03:33:07PM *  5 points [-]

I was recently linked to this Wired article from a few months back on new results in the Bohmian interpretation of Quantum Mechanics: http://www.wired.com/2014/06/the-new-quantum-reality/

Should we be taking this seriously? The ability to duplicate the double slit experiment at classical scale is pretty impressive.

Or maybe this is still just wishful thinking trying to escape the weirdnesses of the Copenhagen and Many Worlds interpretations.

Comment author: pragmatist 04 November 2014 03:39:46PM 2 points [-]

Bohmian mechanics and the Many Worlds interpretation make identical predictions (at least, as long as we ignore anthropic considerations). I haven't yet read the article, but if it is claiming that this experiment is some sort of vindication of Bohmian mechanics, then I suspect it is wrong.

Comment author: MrMind 05 November 2014 09:01:17AM 1 point [-]

Bohmian mechanics and the Many Worlds interpretation make identical predictions

Not exactly. Bohmian QM allows superluminal signalling in certain circumstances.

Comment author: pragmatist 05 November 2014 12:54:45PM *  2 points [-]

Not sure what you mean by this. It is true that Bohmian particles can influence one another superluminally. However, if the experimenter's epistemic state is represented by the wave function (as Bohmian mechanics presupposes), then this superluminal influence can't be leveraged to transmit information superluminally.

Comment author: MrMind 06 November 2014 09:10:59AM 1 point [-]

then this superluminal influence can't be leveraged to transmit information superluminally.

Yes, theoretically it could, but not in an average sense. Quantum mechanics standard is recovered when the wave functions is in equilibrium, but in out-of-equilibrium states you can have violation of relativity or of the Heisenberg uncertainty.

Comment author: pragmatist 06 November 2014 02:35:54PM 1 point [-]

Well, quantum non-equilibrium (based on your Wikipedia link) violates the condition I specified ("the experimenter's epistemic state is represented by the wave function"). I had assumed that was a pre-supposition of Bohmian mechanics, but apparently it is not (at least for some proponents of Bohmianism).

Interesting, thanks.

Comment author: ike 05 November 2014 08:21:05PM 1 point [-]

Well, have any differences been tested, and if not, why not?

Comment author: MrMind 06 November 2014 09:07:46AM 1 point [-]

Yes, they have been tested and no, so far no such effect has been found.

Comment author: gjm 05 November 2014 11:09:04AM 1 point [-]

Really? Could you tell us more?

Comment author: MrMind 06 November 2014 09:11:38AM *  2 points [-]

I'll let wikipedia do the work: quantum non-equilibrium.

Comment author: Gunnar_Zarncke 04 November 2014 11:13:51PM *  1 point [-]

I have seen this some time ago when it was mentioned on slashdot. By now there should be lots of nice videos illustrating those on YouTube. One is this.

What I really like about this is that it allows to gain conflict-free intuitions about QM via macroscopic processes.

See also De Broglie–Bohm theory. I do not see a clear reason why MWI must be preferred. For me the deciding point is which can (better) be generalized relativistically. Apparently there are bohmian mechanic-based approaches

ADDED: The latter article contains the interesting conclusion: "if Bohmian mechanics indeed cannot be made relativistic, it seems likely that quantum mechanics can’t either".

Comment author: FiftyTwo 04 November 2014 02:51:03AM 5 points [-]

Working on a near future hard sci fi story. What are plausible economic reasons to have a fair number of space stations? (generally earth orbit but can be further out)

Comment author: jaime2000 04 November 2014 03:57:40AM 4 points [-]

Space stations? As in, stations with humans in them? Pretty much none. Your best bet is to postulate some sort of alternate history in which electronics and computers never took off. Or you can go in the other direction, and postulate tiny space stations which house computing hardware running uploaded humans.

Comment author: FiftyTwo 04 November 2014 02:48:09PM 2 points [-]

Interesting site.

Human mainteance is still required for satellites, especially if geostationary is becoming even more crowded,

Comment author: polymathwannabe 04 November 2014 12:41:32PM -2 points [-]

alternate history in which electronics and computers never took off

Please, no. The world already has a sickening amount of steampunk.

Comment author: marchdown 05 November 2014 01:07:52AM *  3 points [-]

Please, no. The world already has a sickening amount of steampunk.

Does it now? Care to recommend some?

Comment author: RowanE 04 November 2014 04:40:24PM 2 points [-]

I don't think that's meant to refer to a world without electricity, just keeping computers at 1950s-60s sizes and efficiencies. The linked page describes "rocketpunk" further up, and it's quite different from steampunk.

Comment author: jaime2000 04 November 2014 06:08:42PM *  2 points [-]

Can confirm. I meant a rocketpunk setting in which combustion engines and simple vacuum tube electronics work, but human operators are still required to run space stations capable of monitoring the weather, handling international communications, or spying on enemy countries.

Comment author: garabik 04 November 2014 08:34:32AM 7 points [-]

Arthur Clarke's idea of reduced gravity prolonging significantly human life. Sadly, the available evidence does not quite point in this direction. But for a sci-fi story it might be quite OK (e.g. it is discovered that microgravity prevents Alzheimers').

Comment author: polymathwannabe 04 November 2014 12:37:34PM 3 points [-]

Even though it could make for an interesting story, I would be very wary of making up scientific facts that future research may render obsolete.

Comment author: Lumifer 04 November 2014 05:28:07AM 6 points [-]

Highly valuable technological processes that only work in zero g.

Comment author: FiftyTwo 04 November 2014 02:41:51PM 2 points [-]

Such as?

Comment author: Lumifer 04 November 2014 03:44:58PM 3 points [-]

You're writing fiction, make it up :-) Off the top of my head, metals and alloys crystallize differently in microgravity. It's also easy to make perfect spheres. I'm sure that googling microgravity technology will give you further leads.

Comment author: CellBioGuy 05 November 2014 02:41:49PM 1 point [-]

From what I've seen the ISS is doing very interesting work on plasma physics in space due to having free high-vacuum available and the ability to inject highly-visible tracer particles into a plasma chamber which don't settle out, this also allowing interesting mixed particulate/plasma states.

http://www.nasa.gov/content/space-station-illuminates-dusty-plasmas-for-a-wide-range-of-research/stationresearch/#.VFo2yoWxt2M

Comment author: ChristianKl 04 November 2014 06:44:14PM 1 point [-]

As far as application for crystallization goes, protein scanning needs the proteins in crystallized form. If someone would have a way to crystalize arbitrary proteins in zero-g that would be very valuable.

Comment author: DanielLC 04 November 2014 07:16:09PM 2 points [-]

I've heard you can make LEDs slightly brighter. I don't think that would cause it, but it does give some idea that this is plausible.

Comment author: marchdown 05 November 2014 01:06:06AM *  1 point [-]

It would be fun to have corporations build space stations, ostensibly for technological benefits, but not disclosing details, so that your question would remain unanswered inside the story.

Comment author: Emile 07 November 2014 10:41:57PM 2 points [-]

As others mentioned: mining, special manufacturing exploiting microgravity.

A lot of competition and innovation in the area of data transfer protocols and encryption and localization and espionage increasing the need for engineers that can build, test and maintain new communications directly from orbit, which is cheaper than launching prototype after prototype.

A fad for having a marriage and honeymoon in space, making luxury space hotels commercially viable.

Companies having headquarters in space as the ultimate signal. Especially if it gives them an advantageous legal environment.

China wanting to outshine the US, so heavily subsidizing the stuff above for it's citizens / companies.

Space junk becoming enough of a problem that specialized repair and disposal jobs become viable, mostly financed by the satellite insurance companies.

Some of the things above increasing the number of space flights, and so decreasing prices and making a few more uses become viable.

Comment author: Vaniver 05 November 2014 11:55:45PM *  2 points [-]

What are plausible economic reasons to have a fair number of space stations?

The other country's is slightly bigger.

(If not clear from the choice of 'status competition' as the most plausible economic reason, I think that all reasonable economic activity in space will not involve humans in space.)

Comment author: Lalartu 05 November 2014 11:16:06AM 2 points [-]

Strictly economic? There are none.

At least a tiny bit plausible? The same sort of legislation that made renewable energy profitable in some countries. That is, huge taxes on earthbound industry and big subsidies for spacebound.

Comment author: ChristianKl 04 November 2014 04:25:27PM 3 points [-]

At the moment asteroid mining is one of the best. Quantifies of various rare metals are limited on earth and we have companies working on making asteroid mining a reality.

Earth has laws that prevent certain economic transactions from happening. Various biotech and genetic engineering projects might get outlawed on earth. Human cloning that happens in space stations might make for an interesting story.

There might be nanotech that needs very high precision. Today an electron microscope is effected by a train braking a few kilometers away.

Nanotech could allow you to build cheap very big mirrors that redirect solar energy from one point to another. If you bundle it enough you could have a laser weapon that takes very little time to hit targets. The energy from the mirrors could also be used for electricity generation. On earth but also maybe on Mars.

Comment author: Azathoth123 05 November 2014 01:54:00AM 3 points [-]

Earth has laws that prevent certain economic transactions from happening.

Wouldn't it be easier to bribe officials.

Comment author: MrMind 04 November 2014 08:11:52AM *  3 points [-]

Space factories for spaceship. It's much cheaper to build something heavy in space and have them launch from there. Of course you would have to mine asteroids instead of sending construction materials from the Earth.

Security concerns. If you want to test some form of nanotechnology, you better do that in space and nuclearize the whole thing (provided that nanotech is still extremely dangerous).

MIS (millionaires in space): once you live in outer space as a status signal, it's easier to befriend other rich weirdos in space.

Comment author: FiftyTwo 04 November 2014 02:52:04PM 4 points [-]

Space factories for spaceship.

You still need a strong economic reason for the spaceships if we're looking at a scarcity society with plausible tech. (Unless there's enough public and political will for exploration for its own sake which would rquire its own explanation)

Comment author: MrMind 04 November 2014 10:24:49AM -1 points [-]

Huge computing facility! It's easier to dissipate heat in space.

Comment author: philh 04 November 2014 11:26:07AM 10 points [-]

Not an expert, but my understanding (from reading Heinlein, and I think other sources) is that it's hard to dissipate heat in space, because there's nothing to conduct it away.

Comment author: MrMind 04 November 2014 11:39:07AM 1 point [-]

But isn't space like a heat bath at -273° C? I think there's a finer point one or both of us is missing.

Comment author: RichardKennaway 04 November 2014 02:03:21PM 12 points [-]

Cooling is much easier on the ground.

In space you can only dissipate heat by radiation. In an atmosphere you can also transfer excess heat into matter that you can carry away and dump elsewhere, using conduction, convection, and forced circulation.

For a concrete example, consider Google's average 2011 power consumption of 258MW. What happens if they do all that in a huge server farm in space? Assume the exterior is a perfect black body and the interior is a perfect thermal conductor.

From the Stefan-Boltzmann law, for the equilibrium surface temperature to be at the boiling point of water, the surface area must be 235000 sq.m., or the area of a sphere of diameter 387m. Alternatively, if it was a large flat shape, edge-on to the Sun, it could be a 350m square.

Increasing the surface area with lots of large parallel fins, like on a heatsink, only works when immersed in a thermally conductive circulating medium. In space, the fins just block each others' view, and the effective radiative area is that of the convex hull.

Comment author: MrMind 04 November 2014 01:20:49PM 3 points [-]

The point we are missing is means of dissipation. In space it's impossible to dissipate through convection, while it's very easy to dissipate through radiation.

A space station would roast star-side and freeze in the opposite direction.

Comment author: drethelin 04 November 2014 05:16:48AM 2 points [-]

Extremely wealthy libertarian seperatists.

Comment author: FiftyTwo 04 November 2014 02:42:40PM 1 point [-]

Assuming there is still land available on earth it would be orders of magnitude cheaper to stay groundside.

Comment author: gattsuru 04 November 2014 04:39:45PM 2 points [-]

The high cost of access could well be the point : if you can easily hire a boat to get to your private island, it's pretty simple for governments or peoples to do the same, club you, and take your stuff. A hundred thousand bucks would cover invading you, and make good return on investment.

By contrast, you'd have to have something of very high value to cover a rocket launch, and that something must be mobile enough to send down easily. (Or in extreme cases, you might be the only people who retain full knowledge of the manufacturing necessary to make the rockets, in some way that isn't easy to reverse engineer -- see the difficulty we have reproducing several engine designs as a guide here.)

Comment author: marchdown 05 November 2014 01:07:18AM 1 point [-]

It may be hard to rob you, but easy to shoot you down.

Comment author: Torello 06 November 2014 11:29:04PM 1 point [-]

Rich people treat the space stations as cabins.

Alternately, artist colony for the next generation of super-wealthy artists like Damien Hearst (spelling?) need to go for "artistic inspiration" (scare quotes due to Hansonian signling).

Comment author: gwern 08 November 2014 04:02:37AM 3 points [-]
Comment author: ike 05 November 2014 08:23:15PM 1 point [-]

Not really a reason, but if you postulate that the cost goes down dramatically (to the cost of an average car or something, relatively speaking), then you may have more reasons to work with.

Comment author: sixes_and_sevens 03 November 2014 01:21:38PM *  16 points [-]

Person A is an Olympic-level athlete. He can perform amazing physical feats. The limits of his ability can be scored against some sort of metric (lap time, distance jumped, etc.), and since he's working to improve on them, his own personal limits are known to him.

Person B is of average physical fitness.

Person C has a moderate chronic illness. He struggles to perform basic physical feats, but can function independently with some difficulty.

If all three of these people were secretly transplanted into an environment with lower oxygen levels and began to experience mild hypoxia, it seems that Persons A and C would both be more sensitive to this change than Person B. Person A would notice it because he would no longer be able to perform outstanding physical feats to the level he's accustomed to. Person C would notice it because he'd struggle to carry out basic activities.

[Edit for clarity: I'm not saying that Person B would never notice this, but that he would be less sensitive to it, because his performance is higher-variance and subject to less of a "state change", and doesn't have a fine, frequently-scrutinised boundary between what he can and can't do.]


Alternatively:

Person D is a voracious infovore with high reading comprehension. She's used to grappling with precise language.

Person E is an average-level reader.

Person F has some sort of reading-related disability.

It seems that Persons D and F will be more sensitive to badly-punctuated writing than Person E. For example, Person D might be able to parse a sentence in two or three plausible ways, while Person F might not be able to parse the sentence at all.

Both of these cases involve both ends of an ability distribution being more sensitive to degradation of the environment than central cases. Are there better examples? Is this a phenomenon we actually see in the real world? If so, does it have a name?

Comment author: Lumifer 03 November 2014 05:56:39PM 9 points [-]

I think the basic difference is that people B and E just don't care and are less likely to notice these things because they're not interested in them.

Replace your person B with a person B' who is also of average fitness but recently started a new fitness regime and has been busy quantifying himself. He will notice his mild hypoxia as soon as A.

Comment author: Artaxerxes 03 November 2014 02:47:44PM *  4 points [-]

I'm really not seeing either of your examples, unfortunately. What's stopping average fitness person from noticing their times aren't as good in the same way olympian-level person would notice that their times aren't as good? What's stopping him from noticing his morning jog or whatever is tougher?

Why wouldn't average reader have more difficulty parsing badly punctuated writing as well? Why wouldn't they be able to parse it in different plausible ways too?

I'm just not seeing it.

Edit: To go into more detail:

Person A, B and C are secretly transplanted into a low oxygen universe.

Person A noticed their 200m backstroke time is consistently 4 seconds slower than usual.

Person B notices they have to take walking breaks more often than usual on their morning jog, and took 5 minutes extra to complete their usual route.

Person C has more difficulty doing basic tasks.

Person D, E and F are each given 10 badly punctuated sentences to read.

Person D finds they can parse 4 of them in different plausible ways.

Person E finds they can parse 2 of them in different plausible ways, and can't parse 2 of them at all.

Person F can't parse 4 of them at all.

I see these examples as being just as plausible if not more than yours.

Comment author: NancyLebovitz 03 November 2014 03:05:03PM 4 points [-]

I imagine person B as someone who doesn't do formal exercise at all. If their capacity for exercise goes down, they might think vaguely that they're a little sick or getting older, but they've never been concerned with the details of how much they can do, and it's going to a good-sized change for them to notice it.

However, I'm not sure this pattern extends to reading-- some smart people who read easily seem to have the metaphorical proof-reading/copy-editing gene.

Comment author: Artaxerxes 03 November 2014 03:16:06PM *  2 points [-]

Well then actual fitness level is basically irrelevant, and the ability for someone to notice the effects of the environment change is based mostly upon the factor of whether or not they do any excercise.

Comment author: sixes_and_sevens 03 November 2014 03:03:55PM *  1 point [-]

In the first example, the average-fitness person probably has a lot more variance and a lot less visibility on his physical performance than the Olympian. The Olympian presumably also has a selection of meta-skills surrounding his chosen discipline, and is capable of judging when he's off his game or when he falls short of his own standards.

In the second example, well...

I don't know if you've ever gotten into the timeless identi-discussion with someone who is literate, but refuses to learn how to adequately punctuate their sentences, because they don't see the difference. A lot of people decry poor standards of reading comprehension, and my pet hypothesis is that many readers don't actually parse and evaluate sentences, but just let their eyes suck in the words and have a good guess at what it's supposed to mean.

I've never explicitly stated that hypothesis, but now I have, it seems like a case of attribute substitution: i.e. "Parsing this sentence is hard, so I'll round it off to the nearest sentiment and assume that's what it's saying".

Comment author: Emily 04 November 2014 09:39:30AM 2 points [-]

If you're interested in some actual research on that hypothesis, try Ferreira for a starting point. Any of the papers on her page with the phrase "good enough" in the title will be relevant.

Comment author: sixes_and_sevens 04 November 2014 10:16:41AM 1 point [-]

Thanks.

Comment author: ChristianKl 04 November 2014 12:22:33AM 2 points [-]

A lot of people decry poor standards of reading comprehension, and my pet hypothesis is that many readers don't actually parse and evaluate sentences, but just let their eyes suck in the words and have a good guess at what it's supposed to mean.

If you read a legal contract it's important to understand every word. In most cases it isn't. If you focus too much on details you can also lose context.

Years ago when I was a forum moderator I was reading forum posts in a way where I could decently reidentify a banned member that reregistered. On LW I now don't seem to have that ability anymore to the same extend. My focus is elsewhere.

You trade different ways of reading against each other.

Comment author: Sarunas 03 November 2014 03:10:24PM *  6 points [-]

A and C are much closer to the limits of their respective physical bodies than B. A - due to his high motivation (he is a maximizer, while B is a satisficer, if A didn't have a motivation to maximize his results, he could do the same (or better) as B), C - due to his limited physical abilities. Therefore, they have lower tolerance for the worse environment. In other words, if we plot physical abilities on x axis and the expected/desired result (i.e.result that they have a motivation to achieve) on y axis, we would probably obtain a convex function whose graph is below the line y=x (which corresponds to pushing the physical limits of the body).

Comment author: othercriteria 03 November 2014 03:31:19PM 2 points [-]

A not quite nit-picking critique of this phenomenon is that it's treating a complex cluster of abilities as a unitary one.

In some of the (non-Olympic!) distance races I've run, it's seemed to me that I just couldn't move my legs any faster than they were going. In others, I've felt great except for a side stitch that made me feel like I'd vomit if I pushed myself harder. And in still others, I couldn't pull in enough air to make my muscles do what I wanted. In the latter case, I'd definitely notice the lower oxygen levels but in the former cases, maybe I wouldn't.

So dial down my oxygen and ask to do a road race? Maybe I'll notice, maybe I won't. But ask me to do a decathlon, and some medley swimming, and a biathlon? I bet I'll notice the low oxygen on at least some of those subtasks, whichever of them that require just the wrong mix of athletic abilities.

For the reading one, I can believe this if I'm doing some light pleasure reading and just trying to push plot into my brain as fast as possible. But if I'm reading math research papers, getting the words and symbols into my head is not the rate-limiting step. If there are some typos in the prose, or even in the results or proofs, it doesn't make much of a difference. There might be some second-order effects--when I try to fill in details and an equation doesn't balance, I can be less certain that the error is mine--but these are minor.

So maybe sharpen your claim down to unitary(-ish) abilities?

Comment author: brazil84 05 November 2014 09:38:11PM 1 point [-]

In medical literature, it's not uncommon to read about "U-shaped curves."

Anyway, I am reminded of this:

http://www.youtube.com/watch?v=Y3lQSxNdr3c&t=0m24s

Although I suppose it's pretty similar to the "Goldilocks Principle."

Comment author: palladias 03 November 2014 02:33:28PM *  10 points [-]

I built my first arduino project this month! I was Alina Starkov, the Sun Summoner, for Halloween, so I built accelerometer controlled LED gauntlets so I could turn the lights at my wrists on and off with gestures.

The instructable I wrote is here.

I had an enormous amount of fun, and the arduino system (I was using LilyPad, since I needed it to be sewable) was very beginner friendly. Glad to answer questions/provide encouragement!

Oh, and here are pics of the final costume. (I ran into a HJPEV at my Halloween party)

Comment author: advancedatheist 03 November 2014 03:06:48PM *  9 points [-]

My father, Wendell Potts, died on Friday:

http://www.wassonfuneralhome.com/obituaries/Wendell-Potts/#!/Obituary

He suffered from some sort of dementia, and like a lot of people in that situation he faded away physically as well as mentally.

Years ago, before Dad became ill, we had discussed cryonics, and he said he didn't want it. I respected his wishes, so my sister Michele and agreed I to have his remains cremated.

Yet this coming week end I will help to run a cryonics convention in Laughlin, Nevada, for people who talk about "living forever," depending on how you define that phrase.

Comment author: [deleted] 03 November 2014 09:15:33PM 11 points [-]

I'm sorry for your loss.

Comment author: hyporational 10 November 2014 06:01:04AM *  1 point [-]

I suspect dementia is one of those cases where cryonics isn't of much help since much of the brain is long gone before the person is legally dead. It wouldn't have even occurred to me to suggest cryonics to my grandfather with whom I was very close and who died of Alzheimer's disease.

Sorry for your loss.

Comment author: SodaPopinski 07 November 2014 06:14:19AM 3 points [-]

What is the current status on formalizing timeless decision theory? I am new to LW, and have a mathematics background and would like to work on decision theory (in the spirit of LW). However, all I can find is some old posts (2011) of Eliezer saying that write ups are in process, as well as a 120 page report by Eliezer from MIRI which is mostly discussing TDT in words as well as the related philosophical problems. Is there a formal self contained definition of TDT out there?

Comment author: shminux 07 November 2014 07:24:57AM 6 points [-]

Conveniently, So8res just posted a guide discussing this very issue in section 6.

Comment author: Artaxerxes 07 November 2014 07:10:57AM 4 points [-]

Here is a page of all of MIRI's publications, you can click Decision Theory and it will show all of the relevant papers. It might not be quite what you're looking for, but it might help with working out what MIRI are up to and what they have done in the area.

There might also be something in the rough workshop writeups.

If I were you, once I had exhausted online resources, I would consider contacting MIRI themselves (via email perhaps) if I had any more questions, they're definitely the people to ask.

Comment author: Metus 06 November 2014 01:54:50AM 3 points [-]

Speaking of books, is there place where iI can buy a printed version of the sequences? Reading on a screen is not as comfortable as a classical book for various reasons.

Comment author: Metus 04 November 2014 11:11:21PM 3 points [-]

I just went through a big pile of paper notes.

Only to find out that I already digitized all the stuff I deemed relevant into Evernote resulting in a full trash can. On a more positive note, I gained some perspective that the stuff that was important or a big problem at that time isn't one anymore, giving some tranquility in the long run.

Comment author: Ritalin 08 November 2014 11:34:54PM 6 points [-]

It just occured to me.. is there such a thing as Friendship Research? There's a lot of research on eros, sexuality and romance, and on family relations, storge, and on general altruism, agape, but what about plain old Friendship/Phileo?

Comment author: polymathwannabe 09 November 2014 05:20:53AM 1 point [-]
Comment author: ChristianKl 09 November 2014 03:37:36PM *  3 points [-]

I don't see how papers in the second journal with titles like "How partners’ temptation leads to their heightened commitment: The interpersonal regulation of infidelity threats", "Passion for life: Self-expansion and passionate love across the life span", "Young adult romantic relationships in Mainland China: Perceptions of family of origin functioning are directly and indirectly associated with relationship success " and "A dynamic state-space analysis of interpersonal emotion regulation in couples who smoke " are about plain friendship.

All those titles are from the latest issue and none of the titles of that issue sound to me like the focus on plain friendship.


On further note, the fact that the first answer points to a journal that isn't about normal friendship illustrates that Ritalin's general question hits a deeper point.

Comment author: polymathwannabe 05 November 2014 02:42:20PM 6 points [-]

Years ago a friend let me try his Zelda videogame to have a chance to poke unabashed fun at my clumsiness with console controls, but had a funnier time with my in-world cluelessness. At one moment, I was trapped in a cave whose exit was too high for walking, and I was armed only with a ranged weapon. Atop the exit was a ladder. I was lost. Exasperated, my friend showed me how to get out of there. Never in a million years would I have deduced that I was supposed to shoot the ladder so it would fall to the floor and let me climb to the exit. I was about 23 years old.

More recently, I helped my boss install some applications in Android tablets. I had (and have) never received formal training in the Android OS, and after testing several applications I found the problem of how to close them. I ended up developing the habit of going into the task manager to manually terminate any program I wanted to close. It would never have occurred to me that going into the open programs list and swiping them off the screen would close them, which I only learned two years later by accidentally watching someone else do it.

Programmers and I have clearly different ideas on what is intuitively obvious and what is not, but maybe it's just me being a clueless 1980s dinosaur. Opinions?

Comment author: Lumifer 05 November 2014 05:01:46PM *  7 points [-]

What you are talking about has a name and is a well-known issue in user interfaces. A related concept is POLA.

Comment author: TheOtherDave 05 November 2014 07:56:38PM 4 points [-]

IME, "intuitively obvious" is a red herring for any halfway interesting interface. This was best captured by a coworker of mine decades ago about a feature: "It does what you expect, but you have to expect the right things."

What I strive for in an interface is consistency (both internal and with existing conventions) which maximize the chances that someone will already have learned the relevant interface conventions (or trained their intuitions, if you like).

Comment author: philh 06 November 2014 10:05:21AM 3 points [-]

Video games will often teach you as you go along. It doesn't sound like you played that game from the beginning, so you didn't see all the earlier rooms where shooting something above a door was the solution to a puzzle.

Comment author: hyporational 05 November 2014 03:14:18PM *  3 points [-]

I have an intuition that there's a trade-off between intuitiveness and efficiency. The most efficient ways, e.g. hotkeys, to use an application are usually not the most intuitive, but I'm glad that they exist in parallel with the more intuitive control features and the best apps employ both approaches.

I usually find apps that try to be both maximally efficient and maximally intuitive at the same time overly simplistic.

Comment author: Baughn 06 November 2014 01:33:19AM *  2 points [-]

Swiping applications off the screen doesn't actually close them. It just removes them from the list.

The Android OS transparently closes applications based on memory pressure. You're never supposed to have to do it yourself, and it'll transparently reopen them to their previous state based on persistence files.

It usually works. Of course, sometimes apps get it wrong.

Comment author: ChristianKl 06 November 2014 02:20:33PM *  1 point [-]

It does seem to send a message to the app to which the App can listen with "onTaskRemoved()" and the default behavior is closing the App. If something really want to close an App the app can do it's cleanup under "onDestroy()". Because onDestroy doesn't get called directly it's up to the App to decide whether it wants to close.

My self written app with doesn't do anything specific to handle the case closes automatically based on what the console says.

Comment author: ChristianKl 05 November 2014 05:27:20PM 2 points [-]

As far as the Zelda game goes, seeing the ladder means that if you don't get out of the cave it's probably the solution. From there you can think of possible ways to interact with the ladder. Given the tools at your disposal trying to shoot it with the bow becomes one thing to try.

As far as closing programs go, the obvious first step is to search a list for open programs. Then you try the various ways you can interact with them. What does swiping do? What does long-clicking do?

In general there no closing applications in Android in the way that exists on Windows. The average user is not supposed to need that functionality. Android applications are supposed to be designed in a way that doesn't need the user to close them.

Comment author: polymathwannabe 05 November 2014 08:05:31PM 1 point [-]

I am highly resistant to mouse gestures. I prefer to use keyboard combinations for routine tasks.

Comment author: ChristianKl 06 November 2014 02:25:00PM 1 point [-]

When it comes to routine tasks, often useful to Google around. If you don't find an easy answer, posting a question on Superuser.com usually get's you the answer very fast.

Googling [program name] cheat sheet, is also useful to get to know the keyboard shortcuts for various routine tasks.

Comment author: NancyLebovitz 06 November 2014 10:52:35AM *  4 points [-]

I watched a video about a Baptist minister trying to find a Christian in Sweden. It's amusing but not too surprising (he finds a Christian, but she's not from there, he finds someone who believes in God, but he's a Muslim), but then he finds someone who believes in Kopimism-- a religion in which copying is sacred.

Kopimism made simple:[9]

All knowledge to all;
The pursuit of knowledge is sacred;
The circulation of knowledge is sacred;
The act of copying is sacred
.
According to the Kopimist constitution:[10]

Copying of information is ethically right;
Dissemination of information is ethically right;
Copymixing is a sacred kind of copying, more so than the perfect, digital copying, because it expands and enhances the existing wealth of information;
Copying or remixing information communicated by another person is seen as an act of respect and a strong expression of acceptance and Kopimistic faith;
The Internet is holy (Not generally accepted by churches run by the Maesters);
Code is law.

Comment author: gjm 10 November 2014 02:42:09AM 2 points [-]

I will hazard a guess that actually some people he went up to in the street were Christians -- but they didn't make it into the actual programme. Sure, Sweden isn't very religious. But if the figures in Wikipedia are to be believed, about 18% of Swedish citizens believe in a god, whereas somewhere between 1% and 5% are Muslims (and I bet the Kopimists are way, way, way under 1%; I bet the Kopimist wasn't encountered in random vox-pop interviews).

Comment author: Curiouskid 04 November 2014 08:45:17PM 3 points [-]

I'd appreciate suggestions for resources on open relationships / polyamory.

Comment author: fubarobfusco 04 November 2014 11:13:16PM 4 points [-]

Two standard texts are Easton and Hardy's The Ethical Slut and Taormino's Opening Up.

Comment author: marchdown 05 November 2014 01:03:51AM *  2 points [-]

I would also mention Deborah Anapol's "Polyamory: the new love for the 21st century". I think about it as a survey of polyamorous practices, struggles, communities. It was crucial for me to get the sense of normality. Haven't read Taormino.

Comment author: ChristianKl 04 November 2014 10:45:06PM 1 point [-]

What specifically do you want to know about them?

Comment author: polymathwannabe 06 November 2014 06:07:12PM 2 points [-]

For most of my life, I've heard weather forecasts in the news be described as infamously unreliable. Has there been any serious advance in this field? Is the unreliability of weather forecasts just another of those too-popular memes about things we love to hate?

Comment author: gattsuru 06 November 2014 07:21:40PM *  5 points [-]

Nate Silver (of 538) has some space that he's dedicated to this effort in The Signal and the Noise. Randal Olson's reproduced some of that related to current-day abilities, which show that we're currently able to give better-than-random results for a few days in advance, but not much better after that. And, unsurprisingly, data beats expertise when it comes to accuracy.

A good deal of the data-collecting tools have been developed or implemented relatively recently, and that seems to correlate with improvements to short-term forecasting, to the point where a five-day forecast in 1991 was roughly as likely to be accurate at a three-day forecast in 1981.

They've improved enough that they can probably be trusted to determine whether you should bring an umbrella tomorrow, but the historical numbers and especially expertise-based numbers were inaccurate enough to explain the origin of the meme.

Comment author: NancyLebovitz 06 November 2014 07:44:16PM 4 points [-]

For some of my life (till the 70s or 80s), weatherman jokes were a staple of humor, and the joke was simply that the weatherman was wrong. I haven't heard a weatherman joke for a long time.

The bizarre thing is that I'm sure the jokes existed, but I can't remember any of them.

Comment author: DanielLC 07 November 2014 11:08:14PM *  1 point [-]

I've heard jokes to that effect and I was born in 1990.

Comment author: taelor 07 November 2014 03:41:47AM 3 points [-]

Nate Silver's The Signal And The Noise has a chapter about this. The short answer is yes,, weather forcasting has gotten better, but comerical forcasts have a known "wet bias" in favor of predicting rain. The reason for this is that people get more upset at forcasters when they say it won't rain and it does than when they say it will rain and it doesn't. Acording to Silver, the National Weather Service's forcasts are the most reliable, followed by various large comercial services (e.g. weather.com. etc.), with local news forcasts being the least reliable.

Comment author: garabik 07 November 2014 08:11:18AM *  2 points [-]

Disclaimer: I am not a meteorologist, but a friend of mine is and I had discussed this with him some time ago. Paraphrasing from memory, I might make mistakes.

Only in recent decade or two we got enough computational power to run huge weather models (such as Aladin) comfortably, with live updating on incoming data. However, the model is only as good as the input data - if the meteorological weather stations are positioned every few kilometers, the prediction is extremely good, but if they are more sparse, the errors increase. The complexity of terrain plays a role too - on a flat plain, weather stations might reasonably be spaced tens of km's, but a small hill means they have to be spaced much more closely to get reasonable results.

There is also sometimes very helpful "local knowledge" - e.g. whatever the abrupt weather change in Germany, you can be reasonably sure in 3 days it will happen in Slovakia.

Taking this into account, professional weather forecast is very reliable for a day or two - enough to leave your umbrella at home. However, interpretation by news forecasters glosses over finer details, such as "sunny, high temperature with 10% chance of rain" will be interpreted as "sunny, high temperature, a little of rain" and give false signals.

Comment author: Salemicus 06 November 2014 09:51:46PM 2 points [-]

The weather forecasts really were rubbish in the past.

To give one notorious example, a weatherman on Britain's main television station once mocked a member of the public's claim that the country was about to be struck by a hurricane. That very night, Britain was hit by one of the most severe hurricanes of modern times, killing 18 people.

Comment author: chaosmage 05 November 2014 10:18:53AM *  2 points [-]

I just got warm fuzzies from this video, where His Cleverness Elon Musk says (about the necessity of soliciting negative feedback when starting a company):

You should take the approach that you the entrepreneur are wrong. Your goal is to be less wrong.

He also says in this much longer interview at MIT that unfriendly AI is "probably" "our biggest existential threat".

Comment author: Ritalin 10 November 2014 01:15:28AM 1 point [-]

Understanding how rights work:

This topic still confuses me greatly. Let's take the example of the "Right to Life, Liberty and the Security of Person". Can a "Right to Cryogenic Treatment" be argued from there? Would that, in turn, simply entail that I get to sign up for cryogenic treatment without obstacles and cannot be forbidden from doing so (for instance, cryo is illegal in France), or could it be spun otherwise?

Comment author: shminux 10 November 2014 02:37:12AM *  2 points [-]

A right is a shortcut in consequentialism (or another normative ethics) turned into a lost purpose. Different rights can and do contradict each other, since they were derived in different circumstances. Thus you can argue for or against anything, by stretching the domain of validity of a suitable right. It all depends on how connected, influential and persuasive you are. Hence lawyers.

Comment author: ChristianKl 10 November 2014 11:10:39AM 1 point [-]

Let's take the example of the "Right to Life, Liberty and the Security of Person". Can a "Right to Cryogenic Treatment" be argued from there?

The right to life is a pretty recent idea.

The US constitution for example have a right not to be deprived of life without due process. It has a right to not to be tortured (cruel and unusual punishment) no matter what.

In the US some cryonics folks have registered a religion that allows them there cryogenic treatment without interference. Freedom of religion is actually a constitutional right in the US. In the case of abortion "pro-life" is also a position mainly argued from a position of religion.

The France state is strongly secular and you don't get many expectations just because you register a religion. Especially one without tradition such as the one of the cryonics folks. The French state doesn't allow any religion to block autopsies simply by claiming that they have a special burial ritual that forbids autopsies. That's why there's a different situation concerning cryonics in France.

At the moment no court considers a cryonic person alive. If it would then the whole scheme of using insurance contracts that trigger on the death of a person wouldn't work to finance cryonics in the first place.

Comment author: Artaxerxes 06 November 2014 09:17:36PM 1 point [-]

Dan Carlin talks about AI in the context of existential risks in a recent episode of his podcast Common Sense. The discussion on AI starts around 33 mins.

He does a pretty good job of introducing relevant concepts to his audience, and includes quotes from Steven Hawking, Elon Musk and Nick Bostrom.

Comment author: polymathwannabe 05 November 2014 02:06:05PM 1 point [-]
Comment author: Metus 04 November 2014 11:49:23PM 1 point [-]

There is Superintelligence reading group going on and I realised that I am actually member in another reading group. Which made me wonder: Is there a general website for reading groups? My reading list is long and I could use the mild social incentive to read through it. Also the discussion usually is very valuable.

Comment author: iarwain1 04 November 2014 07:19:53PM *  1 point [-]

What are excellent nonfiction books available in audio format? I'm especially looking for audio books in the following categories:

  • Rationality = cognitive biases, thinking strategies, etc. (I've read / listened to all the popular books in CFAR's reading list, so don't include those.)
  • Logic (beginner level)
  • Philosophy (beginner / intermediate)
  • Economics (beginner)
  • Fundamental physics (beginner)
  • Debating skills
  • Research skills

Nothing that requires knowledge of calculus, please.

[Should I have posted this somewhere in the media thread?]

Comment author: hyporational 04 November 2014 08:10:25PM 4 points [-]