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A few notes about the community
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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:
- The Worst Argument in the World
- That Alien Message
- How to Convince Me that 2 + 2 = 3
- Lawful Uncertainty
- Your Intuitions are Not Magic
- The Planning Fallacy
- The Apologist and the Revolutionary
- Scope Insensitivity
- The Allais Paradox (with two followups)
- We Change Our Minds Less Often Than We Think
- The Least Convenient Possible World
- The Third Alternative
- The Domain of Your Utility Function
- Newcomb's Problem and Regret of Rationality
- The True Prisoner's Dilemma
- The Tragedy of Group Selectionism
- Policy Debates Should Not Appear One-Sided
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!
Once a post gets over 500 comments, the site stops showing them all by default. If this post has 500 comments and you have 20 karma, please do start the next welcome post; a new post is a good perennial way to encourage newcomers and lurkers to introduce themselves. (Step-by-step, foolproof instructions here; takes <180seconds.)
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, a big thank you to everyone that helped write this post via its predecessors!
In my (admittedly limited, I'm young) experience, people don't disagree on whether that tradeoff is worth it. People disagree on whether the tradeoff exists. I've never seen people arguing about "the tradeoff is worth it" followed by "no it isn't". I've seen a lot of arguments about "We should decrease inequality with policy X!" followed by "But that will slow economic growth!" followed by "No it won't! Inequality slows down economic growth!" followed by "Inequality is necessary for economic growth!" followed by "No it isn't!" Like with Obamacare - I didn't hear any Republicans saying "the tradeoff of raising my taxes in return for providing poor people with healthcare is an unacceptable tradeoff" (though I am sometimes uncharitable and think that some people are just selfish and want their taxes to stay low at any cost), I heard a lot of them saying "this policy won't increase health and long life and happiness the way you think it will".
"Is this tradeoff worth it?" is, indeed, a values question and not a scientific question. But scientific questions (or at least, factual questions that you could predict the answer to and be right/wrong about) could include: Will this policy actually definitely cause the X% decrease in inequality? Will this policy actually definitely cause the Y% slowdown in economic growth? Approximately how large is X? Approximately how much will a Y% slowdown affect the average household income? How high is inflation likely to be in the next few years? Taking that expected rate of inflation into account, what kind of things would the average family no longer be able to afford / not become able to afford, presuming the estimated decrease in average household income happens? What relation does income have to happiness anyway? How much unhappiness does inequality cause, and how much unhappiness do economic recessions cause? Does a third option (beyond implement this policy / don't implement it) exist, like implementing the policy but also implementing another policy that helps speed economic growth, or implementing some other radical new idea? Is this third option feasible? Can we think up any better policies which we predict might decrease inequality without slowing economic growth? If we set a benchmark that would satisfy our values, like percentage of households able to afford Z valuable-and-life-improving item, then which policy is likely to better satisfy that benchmark - economic growth so that more people on average can afford Z, or inequality reduction so that more poor people become average enough to afford an Z?
But, of course, this is a factual question. We could resolve this by doing an experiment, maybe a survey of some kind. We could take a number of left-wing policies, and a number of right-wing policies, and survey members of the "other tribe" on "why do you disagree with this policy?" and give them options to choose between like "I think reducing inequality is more important than economic growth" and "I don't think reducing inequality will decrease economic growth, I think it will speed it up". I think there are a lot of issues where people disagree on facts.
Like prisons - you have people saying "prisons should be really nasty and horrid to deter people from offending", and you have people saying "prisons should be quite nice and full of education and stuff so that prisoners are rehabilitated and become productive members of society and don't reoffend", and both of those people want to bring the crime rate down, but what is actually best at bringing crime rates down - nasty prisons or nice prisons? Isn't that a factual question, and couldn't we do some science (compare a nice prison, nasty prison, and average-kinda-prison control group, compare reoffending rates for ex-inmates of those prisons, maybe try an intervention where kids are deterred from committing crime by visiting nasty prison and seeing what it's like versus kids who visit the nicer prison versus a control group who don't visit a prison and then 10 years later see what percentage of each group ended up going to prison) to see who is right? And wouldn't doing the science be way better than ideological arguments about "prisoners are evil people and deserve to suffer!" versus "making people suffer is really mean!" since what we actually all want and agree on is that we would like the crime rate to come down?
So we should ask the scientific question: "Which policies are most likely to lead to the biggest reductions in inequality and crime and the most economic growth, keep the most members of our population in good health for the longest, and provide the most cost-efficient and high-quality public services?" If we find the answer, and some of those policies seem to conflict, then we can consult our values to see what tradeoff we should make. But if we don't do the science first, how do we even know what tradeoff we're making? Are we sure the tradeoff is real / necessary / what we think it is?
In other words, a question of "do we try an intervention that costs £10,000 and is 100% effective, or do we do the 80% effective intervention that costs £80,000 and spend the money we saved on something else?" is a values question. But "given £10,000, what's the most effective intervention we could try that will do the most good?" is a scientific question and one that I'd like to have good, evidence-based answers to. "Which intervention gives most improvement unit per money unit?" is a scientific question and you could argue that we should just ask that question and then do the optimal intervention.