Welcome to Less Wrong! (5th thread, March 2013)

orthonormal

37 Welcome to Less Wrong! (5th thread, March 2013)

1st Apr 2013

6 min read

37

If you've recently joined the Less Wrong community, please leave a comment here and introduce yourself. We'd love to know who you are, what you're doing, what you value, how you came to identify as a rationalist or how you found us. You can skip right to that if you like; the rest of this post consists of a few things you might find helpful. More can be found at the FAQ.

(This is the fifth incarnation of the welcome thread; once a post gets over 500 comments, it stops showing them all by default, so we make a new one. Besides, a new post is a good perennial way to encourage newcomers and lurkers to introduce themselves.)

A few notes about the site mechanics

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However, it can feel really irritating to get downvoted, especially if one doesn't know why. It happens to all of us sometimes, and it's perfectly acceptable to ask for an explanation. (Sometimes it's the unwritten LW etiquette; we have different norms than other forums.) Take note when you're downvoted a lot on one topic, as it often means that several members of the community think you're missing an important point or making a mistake in reasoning— not just that they disagree with you! If you have any questions about karma or voting, please feel free to ask here.

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Discussions on Less Wrong tend to end differently than in most other forums; a surprising number end when one participant changes their mind, or when multiple people clarify their views enough and reach agreement. More commonly, though, people will just stop when they've better identified their deeper disagreements, or simply "tap out" of a discussion that's stopped being productive. (Seriously, you can just write "I'm tapping out of this thread.") This is absolutely OK, and it's one good way to avoid the flamewars that plague many sites.

EXTRA FEATURES:

There's actually more than meets the eye here: look near the top of the page for the "WIKI", "DISCUSSION" and "SEQUENCES" links.

LW WIKI: This is our attempt to make searching by topic feasible, as well as to store information like common abbreviations and idioms. It's a good place to look if someone's speaking Greek to you.

LW DISCUSSION: This is a forum just like the top-level one, with two key differences: in the top-level forum, posts require the author to have 20 karma in order to publish, and any upvotes or downvotes on the post are multiplied by 10. Thus there's a lot more informal dialogue in the Discussion section, including some of the more fun conversations here.

SEQUENCES: A huge corpus of material mostly written by Eliezer Yudkowsky in his days of blogging at Overcoming Bias, before Less Wrong was started. Much of the discussion here will casually depend on or refer to ideas brought up in those posts, so reading them can really help with present discussions. Besides which, they're pretty engrossing in my opinion.

A few notes about the community

If you've come to Less Wrong to discuss a particular topic, this thread would be a great place to start the conversation. By commenting here, and checking the responses, you'll probably get a good read on what, if anything, has already been said here on that topic, what's widely understood and what you might still need to take some time explaining.

If your welcome comment starts a huge discussion, then please move to the next step and create a LW Discussion post to continue the conversation; we can fit many more welcomes onto each thread if fewer of them sprout 400+ comments. (To do this: click "Create new article" in the upper right corner next to your username, then write the article, then at the bottom take the menu "Post to" and change it from "Drafts" to "Less Wrong Discussion". Then click "Submit". When you edit a published post, clicking "Save and continue" does correctly update the post.)

If you want to write a post about a LW-relevant topic, awesome! I highly recommend you submit your first post to Less Wrong Discussion; don't worry, you can later promote it from there to the main page if it's well-received. (It's much better to get some feedback before every vote counts for 10 karma- honestly, you don't know what you don't know about the community norms here.)

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* Normal_Anomaly
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* shokwave
* Barry Cotter

A note for theists: you will find the Less Wrong community to be predominantly atheist, though not completely so, and most of us are genuinely respectful of religious people who keep the usual community norms. It's worth saying that we might think religion is off-topic in some places where you think it's on-topic, so be thoughtful about where and how you start explicitly talking about it; some of us are happy to talk about religion, some of us aren't interested. Bear in mind that many of us really, truly have given full consideration to theistic claims and found them to be false, so starting with the most common arguments is pretty likely just to annoy people. Anyhow, it's absolutely OK to mention that you're religious in your welcome post and to invite a discussion there.

A list of some posts that are pretty awesome

I recommend the major sequences to everybody, but I realize how daunting they look at first. So for purposes of immediate gratification, the following posts are particularly interesting/illuminating/provocative and don't require any previous reading:

More suggestions are welcome! Or just check out the top-rated posts from the history of Less Wrong. Most posts at +50 or more are well worth your time.

Welcome to Less Wrong, and we look forward to hearing from you throughout the site!

Note from orthonormal: MBlume and other contributors wrote the original version of this welcome post, and I've edited it a fair bit. If there's anything I should add or update on this post (especially broken links), please send me a private message—I may not notice a comment on the post. Finally, once this gets past 500 comments, anyone is welcome to copy and edit this intro to start the next welcome thread.

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37 Welcome to Less Wrong! (5th thread, March 2013)

by orthonormal

1st Apr 2013

6 min read

1746

37

A few notes about the site mechanics

EXTRA FEATURES:

There's actually more than meets the eye here: look near the top of the page for the "WIKI", "DISCUSSION" and "SEQUENCES" links.

A few notes about the community

A list of some posts that are pretty awesome

More suggestions are welcome! Or just check out the top-rated posts from the history of Less Wrong. Most posts at +50 or more are well worth your time.

Welcome to Less Wrong, and we look forward to hearing from you throughout the site!

Open ThreadsSite Meta

Personal Blog

37

New Comment

Rendering 0/1746 comments, sorted by

top scoring

(show more) Click to highlight new comments since: Today at 12:13 PM

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pragmatist13y10

I disagree. Intelligence makes its own rules once it is there; but the human brain is one of the most arbitrary and hard-to-understand pieces of equipment that we know about. There have been a lot of very smart people trying to build AI for a very long time; if the creation of intelligence were highly non-arbitrary and followed well-known rules, we would have working AI by now.

I agree that intelligence itself is an optimizing process (which I presume is what you mean by "making its own rules"), but it is also the product of an optimizing process, natural selection. Your claim that it is arbitrary confuses the map and the territory. Just because we don't fully understand the rules governing the functioning of the brain does not mean it is arbitrary. Maybe it is weak evidence for this claim, but I think that is swamped by the considerable evidence that intelligence is exquisitely optimized for various quite complex purposes (and also that it operates in accord with the orderly laws of nature).

Also, smart people have been able to build AIs (albeit not AGIs), and the procedure for building machines that can perform intelligently at various tasks involves quite a bit of design. We may not know what rules govern our brain, but when we build systems that mimic (and often outperform) aspects of our mental function, we do it by programming rules.

I suspect, though, that we are talking past each other a bit here. I think you're using the words "random" and "arbitrary" in ways with which I am unfamiliar, and, I must confess, seem confused. In what sense is the second horn of your dilemma an "arbitrary universe [coming] into existence with random (and suspiciously orderly) laws"? What does it mean to describe the universe as arbitrary and random while simultaneously acknowledging its orderliness? Do you simply mean "uncaused", because (a) that is not the only alternative to theism, and (b) I don't see why one would expect an uncaused universe (as opposed to a universe picked using a random selection process) not to have orderly laws.

Fair enough. Then let me put it this way; if God is not sufficiently intelligent, then God would be unable to create the ordered universe that we see; in this case, an ordered universe would be no more likely than it would be without God. An ordered universe is therefore evidence in favour of the claim that if God exists, then He is sufficiently intelligent to create an ordered universe.

OK, but this doesn't respond to Eliezer's point. If you conditionalize on the existence of (a Christianish) God, then plausibly an intelligent God is more likely than an unintelligent one, given the orderliness of the universe. But Eliezer was contesting your claim that the orderliness of the universe is evidence for the existence of God, while also not being evidence for the existence of a Metagod.

Juno_Watt13y00

I don't really follow this. Things in Platonia or Tegmark level IV don't have separate probabilities Any coherent mathematical stucture is guranteed to exist. (And infinite ones are no problem). So the probabilty of a infinite stack of metagods depends on the coherence of a stack of metagods being considered a coherent mathematical structure, and the likelihood of our living in a Tegmark IV.

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0CCC13y

What I mean is, not planned. If I toss a fair coin ten thousand times, I have an outcome (a string of heads and tails) that would be arbitrary and random. It is possible that this sequence will be an exactly alternating sequence of heads and tails (HTHTHTHTHTHT...) extending for all ten thousand tosses (a very orderly result); but if I were to actually observe such an orderly result, I would suspect that there is an intelligent agent controlling that result in some manner. (That is what I mean by 'suspiciously orderly' - it's orderly enough to suggest planning). [...] Well, it makes sense that P(intelligent God | Metagod) > P(intelligent God | ~Metagod). And therefore P(Metagod | Metametagod) > P(Metagod | ~Metametagod), and so on to infinity; but an infinity of metagods and metametagods and so on is clearly an absurd result. The chain has to stop somewhere, and that 'somewhere' has to be with an intelligent being. Therefore, there has to be an intelligent being that can either exist without being created by an intelligent creator, or that can create itself in some sort of temporal loop. (As I understand it, the atheist viewpoint is that a human is an intelligent being that can exist without requiring an intelligent creator). And my point was that P(intelligent God | ~Metagod) is non-zero. The chain can stop. P(Metagod | intelligent God) may be fairly high; but P(Metametagod | intelligent God) must be lower (since P(Metametagod | Metagod) < 1). If I go far enough along the chain, I expect to find that P(Metametametametametametametagod | intelligent God) is fairly low. Does that help?

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