All of toner's Comments + Replies

toner10

It can’t get through metal, but this fentanyl-detecting machine can detect fentanyl in packages:

toner130

You might want to rethink the definition of "hardest problem" because I wouldn't expect the IMO committee to care particularly much that their problems are hard for machines as well as humans.

For example, if you look at the 2005 IMO, but suppose that problem 6 was geometry, so that the problem 3 was the "hardest", then you're in trouble. Problem 3 has a one-line proof "by sum_of_squares", assuming that someone has written a sum-of-squares tactic in time and that the sum-of-squares certificate is small enough to find within the time limit.

Alternatively, the... (read more)

Yeah, this may well be right. I agree that IMO 2015 problem 3 can be solved by machine. I think both the geometry and 3 variable inequalities could be a very big problem (in that lots of instances are easy for machines and hard for humans). Some diophantine equations and functional equations are also very easy for machine. By 2022 my vague understanding is that the committee is much less likely to put that kind of question in the hardest slot since increasingly many contestants can basically do the machine-like proofs. But I maybe shouldn't count on that, ... (read more)

toner50

Data from NSW, Australia. Delta was stable at 150-300 cases/day, so recent spike is likely omicron. 93% of people aged 16 or over are double-vaccinated. https://covidlive.com.au/report/daily-cases/nsw

toner20

Re. the NBA study, say I go get my antibody levels tested (which is easy here in Australia), do we know what counts as a high result?

toner*160

Reusable respirator guide

  • In scope: information about half-facepiece reusable respirators. Out of scope: whether you should wear a mask, etc.
  • Reasons to prefer a reusable respirator over a disposable one: they're (i) more comfortable and (ii) prosocial, preserving disposable masks for medical personnel.
  • You need to buy two components: the mask and filters.
  • The mask. The wirecutter recommends 3M's 6500 series. I have the next model up, from the 7500 series. The 7500 comes in three sizes, small (7501), medium (7502) and large (7503). I think the idea o
... (read more)
2Zian
The University of Texas at Houston, McGovern Medical School, Department of Otorhinolaryngology also has some good summarized advice for P100 masks. They recommend 15 mL of bleach per gallon for sanitizing the mask. Also, I have the impression that as long as the filter is not visibly soiled and it is not hard noticeably harder to breath with the respirator on compared to when you are not wearing the respirator, then the filter can be used indefinitely. Most filter replacement schedules assume that you are working with some sort of vapor that will attack the filter rather than using P100 filters for particular protection alone.
toner190

Thank you very much for producing these. As someone who's rather time poor but trying to become more informed, they are very helpful.

6habryka
Agree. Thank you a lot for writing these. They have been quite useful.

You're welcome!

toner40

Here is some alternative code for building an HN clone: https://github.com/jcs/lobsters (see https://lobste.rs/about for differences to HN).

toner70

It's also one night before full moon (which is at 4:50am on June 15), which should make the sky quite bright.

On a related note, consider what the moon looks like one night before it's full. Would you describe this as "over three-quarters full"? While that's technically correct, I wouldn't. I'd maybe describe a June 11-12 moon as "over three-quarters full" but I'd say a June 13-14 moon is "almost full". So we should up the probability that we're in a story/simulation/mirror.

toner80

Observation: If the purpose of this exercise is to run an AI box experiment, with EY as gatekeeper and the internet hivemind as the AI, then the ability to speak in parseltongue is problematic: It appears to make the game easier for the AI, thereby preventing the results from being generalized to a standard AI box experiment.

So why did Eliezer include the parseltongue constraint?

Maybe parseltongue is meant to introduce the concept of provability in a way that everyone can understand. To speak in parseltongue in real life, you just speak in logic statements... (read more)

1hamnox
It's there to limit Harry using the death eaters somehow. Seriously, my first thought on this problem was to convince the death eaters that there were two Voldemorts to seed confusion.
toner10

Here's a flawed solution, but maybe someone can fix it.

Harry performs partial transfiguration on his brain, to transform it into a state where he thinks that he's booby-trapped the universe (for example, by transfiguring some strangelets along with a confinement field that will expire before the strangelets do). Then he just explains honestly to Voldemort why the universe will end if he dies.

1Jiro
Does transfiguring your brain work in a setting implied to have Cartesian dualism?
toner20

The mirror and efficient simulation

Until the mirror appeared, the HPMOR universe could be simulated efficiently, at least as far as we knew. Time travel is limited to a six-hour cache; you can't transfigure arbitrary things, and Harry's attempts to use time travel to solve computational problems failed. This is likely to be deliberate.

So, how does the mirror exist? According to the inscription on the back, the mirror shows the actor's coherent extrapolated volition (CEV). Is this possible to compute efficiently from an actor's source code? I would guess no... (read more)

0skeptical_lurker
Self-consitant time travel seems far harder to simulate than CEV.
toner30

This will be the last meetup at my apartment.

toner00

I sadly can't make this one.

toner00

We plan to discuss metaethics. It might be useful to narrow this down.

toner10

Yes. My house, but I won't be there until late.

toner10

And upvote Richard's comment too, to thank him for hosting!

0RyanCarey
Ben, is this Friday meetup at the standard location, or is Richard hosting it?
toner10

I can't make it to this one.

toner60

The workshop was invigorating because nearly everyone seemed confused.

John Preskill

toner20

Paleo + intermittent fasting + read Kevin's posts on supplements.

toner310

Let me expand on my comment from the Hacker News thread.

I went to the July workshop. I think it was probably the most useful week of my life in terms of exposure to things I could be doing to be more productive and effective. Since then, I've mainly been trying to incorporate the low-hanging fruit---the obviously good simple ideas---into my life. Some examples:

  • At work, I realized I wasn't doing anywhere near enough planning. My employees were spending time on the wrong things because I hadn't planned things out in enough detail to make it clear what was
... (read more)
2Swimmer963 (Miranda Dixon-Luinenburg)
This is an excellent idea!
1OphilaDros
Have you/has he written about this somewhere? If not, could you expand? This seems potentially very useful.
toner00

We'll organize something. I'll talk to people about it at this coming meetup. There are some other non-local Less Wrong people in Melbourne right now too.

toner00

We could do! Will you be here? We'll at least repeat this meetup on December 21.

0MileyCyrus
Yeah I'm going to be spending Christmas-New Years in Melbourne. I'll probably still be in rural Victoria on the 21st though.
toner00

Notes from discussion about finding better metrics to measure CfAR's effectiveness

[Discussion about what CfAR is trying to teach.]

Have to avoid CfAR just measuring how much people are paying attention in their courses

Beforehand: write down goals

Six months later: measure them against their pre-camp goals

Control group

Just attending a camp might make it feel like you're making more progress towards your goals.

Some goals hard to measure

How much throughput are they expecting? 3 camps/month.

Measuring income: a lot of people might decide during the camp to change... (read more)

toner50

Quixey is incredibly successful. Also, LessWrong is still young. Give it time! There may be a bunch of startups out there we haven't heard of yet. For example, I'm doing a startup with 3 other LWers, but we need a little longer before we're successful ;-)

2Bruno_Coelho
I don't feel LessWrong young. OB 2006 posts are extremely past to me, even if a different site. But If we consider LW a internet startup, the site is doing pretty fine, since the failure rate is 25% for US. For the first three year, the rate of sucess is 65%, 51% for 5 years. Besides having a core content written in a unusual language.
toner10

I can come and I'd be happy to do the exercise I suggested last month

http://lesswrong.com/lw/bym/meetup_melbourne_practical_rationality/6gcz

but I'm thinking we'd probably prefer to hear from James and Scott about the minicamp (if they're willing).

0Maelin
We may well be able to do both! I'll also be bringing a carefully selected subset of my Lego collection, so we can try playing Zendo, if we have time.
toner00

Edit: Let's save the updating activity below for another night or for next month, when Aubrey de Grey isn't speaking.

We decided that we'd take it in turns to prepare activities for the practical rationality meetups, and I volunteered for this meetup.

Here's the plan. I have a bunch of trivia questions with numerical answers. For each question: Everyone records either 50% or 90% confidence intervals. Open discussion. Everyone may alter their intervals. Record initial and updated calibration. The aim is to test our calibration (is it true that approximately h... (read more)

toner10

It's not a zero-sum game!

toner00

Sadly I can't make it tonight. I find myself in the wrong timezone and I'll be asleep.

toner10

Thanks for organizing this Adam, I enjoyed it!

There was a strong consensus that we wanted to keep meeting, and I made a google group for us to plan activities, discuss what sorts of things we might like to do in the future, let each other know of interesting events, and so on.

At the moment the group is semi-private, meaning that only members can view content but anyone can join. There is no moderation. We can change this if there is a consensus to do so or as it becomes necessary.

I'll make AdamBell, Patrick (who organized the previous meetups) and matt ad... (read more)

toner00

I'll come but will probably be a bit late.

toner20

Many jobs, including almost all of those that people would do on a working holiday, have Award rates higher than the minimum wage. Effectively, in Australia the minimum wage depends on the job. $21 is probably the minimum allowed by whatever Award governs shokwave's employment, either the Fast Food Industry Award or KFC might have their own enterprise agreement.

If anyone cares, the place to learn about this is here.

0lukeprog
Thanks for the link!
toner00

I agree, start with no limit hold'em because there's an awful lot of good learning material about it and the games at low limits are pretty good, but at some point consider switching to pot limit omaha.

toner10

I think most online sites are 18+.

Most people use databases and heads-up displays, but to calculate and present statistics about your own and your opponents' play, not to calculate odds (calculating odds is easy). I like Poker Tracker.

toner90

Read some of the books published by Two Plus Two for solid beginner information that's mostly a little out of date; then sign up at a video training site (I like Deuces Cracked) for up-to-date information; finally go, e.g., here and accept one of the offers where they give you free money to play with and then use their money to practice at 1 cent/2 cent games.

Also, maybe ask this question at the Two Plus Two forums for a better response.

Yeah, Two Plus Two is a good source of advice on everything poker-related. People can also email me if they wish, I make my money by playing poker.

And when choosing a rakeback site (you do need one), feel free to support a fellow LWer and SIAI-supporter by choosing mine :)

(It's actually kind-of half-finished; I haven't really started to promote it, and haven't polished the content. But it does work.)

EDIT: One of the ways in which that site of mine is "unfinished", is that it has a marketing attitude to a degree. I built it based on a template tha... (read more)

1Relsqui
Hmm, thank you. At this moment I have neither as much money nor as much attention available as I think doing this right would require, but it's good to have leads for when that changes.
toner70

Go ahead! But it's hard.

1Aleksei_Riikonen
If someone wants to do it, I btw could offer useful advice, including almost-finished algorithms on how the bot could play profitably. Haven't done it myself, but have looked into it. Stopped short of doing the boring stuff of coding some stuff up (I don't really do programming), and of course there's also the ethical question of whether I want to screw over pokersites. But it certainly can be done, and I think I've already done the parts that could be hard (mostly, coming up with a winning play style that is sufficiently algorithmic). (BTW, even good bots currently don't beat good or even mediocre players in most poker variations, but bots can make money playing against bad players, which are abundant.)
toner160

I hear that everywhere too. It's a selection effect: most of the population aren't smart and rational enough to be long-term winning players and it's these people you hear complaining, while the good players go on quietly winning.

It's definitely true that the games are getting tougher every year, because the community is learning to play better, so the threshold of ability you need to be a winning player is constantly increasing. But it's not that high yet.

Now let's talk about your two bugbears, bots and collusion.

1. Bots

You never ever have to worry about... (read more)

(In practice, except possibly for heads-up limit hold'em, good players are still better than the best bots published in the academic literature anyway.)

This is an interesting observation, but probably not that surprising: if you had a superior poker bot that was consistently profitable, why on earth would you publish it?

Generalizing, if someone working at a bank or hedge fund developed a superior theory of economics, and that theory could be used to make money through trading, why would they tell anyone else about it? Once the knowledge became public, it would no longer be profitable.

4Aleksei_Riikonen
Online poker has recently been getting tougher every year, but it's not at all certain that this'll continue. There could actually be a significant softening period coming up. Especially because the U.S. is moving towards dropping certain legislation, leading to a renewed explosion of U.S. players. Asia could also see a poker boom in the near future. In general, in recent years almost every bad thing that could conceivably happen to online poker has happened, and it still hasn't actually been very bad, with the industry maintaining growth. It's difficult for the amount of (non-difficult) difficulties to not drop.
7JamesAndrix
Isn't the obvious strategy then to create a set of colluding bots, and try to avoid detection?
toner50

If you're truly smart, truly rational, and with the goal function you describe in your post, an obvious answer is to play poker on the internet. But beware: if it turns out you're not actually as rational as most of us on Less Wrong think we are, it probably won't work out.

2Will_Newsome
I'd have to lie about my age, no? Also, doesn't everyone just use software databases that tell them the odds for every hand? Or is that less common than I'd thought?
1Relsqui
This is actually something I've considered--I like the game, and I feel like I have the right kind of gray matter to think about it statistically. But I know I'm not currently anywhere near a level where putting real money on it would be a good idea. Any suggestions of excellent learning resources?
8gwern
Is poker really doable? I was under the impression that amateurs were being driven out and even professionals were having difficulty dealing with poker bots and collusion.
toner30

Thank you for organising this. I'll come. It's a good choice of venue.

toner40

Surely this is illegal in the US. First you're acting like a bank by taking deposits and paying interest, and probably you have to actually be a bank to do that; second you're setting yourself up as a bookmaker.

1dreeves
This may be mostly an issue of terminology. Treat the upfront payment as a fee for the service and then there's a contest with prizes. It's not gambling for the same reason it's not gambling when you pay an entry fee for a race with cash prizes.
toner10

Design suggestion:

All the meta stuff associated with a comment, viz.

Posted by: Kaj_Sotala 02 March 2009 09:32:50AM 2 points Vote up | Vote down | Permalink | Parent | Report | Reply

takes up a lot of space and impedes readability of the discussion. Can all this stuff be made smaller and less prominent (maybe more like it is on Hacker News) and perhaps some of the links only be visible when you're in the actual comment's thread (like the "Flag" feature is on Hacker News)? (Also we don't really need to know the exact second that a post is made.)

1Vladimir_Nesov
By the way, what does the star mean that sometimes appears after the commenting time? On this comment (to which I reply), I see "02 March 2009 03:18:52PM*", and on the comment below I see "02 March 2009 05:57:13PM", without the star.
1thomblake
I disagree. While the vote etc buttons might be redesigned in some way, I wouldn't like it if any of this stuff was less prominent. Also, I like having complete datetime stamps.