I chose more_wrong as a name because I'm in disagreement with a lot of the lesswrong posters about what constitutes a reasonable model of the world. Presumably my opinions are more wrong than opinions that are lesswrong, hence the name :)
My rationalist origin story would have a series of watershed events but as far as I can tell, I never had any core beliefs to discard to become rational, because I never had any core beliefs at all. Do not have a use for them, never picked them up.
As far as identifying myself as an aspiring rationalist, the main events that come to mind would be:
Devouring as a child anything by Isaac Asimov that I could get my hands on. In case you are not familiar with the bulk of his work, most of it is scientific and historical exposition, not his more famous science fiction; see especially his essays for rationalist material.
Working on questions in physics like "Why do we call two regions of spacetime close to each other?", that is, delving into foundational physics.
Learning about epistemology and historiography from my parents, a mathematician and a historian.
Thinking about the thinking process itself. Note: Being afflicted with neurological and psychological conditions that shut down various parts of my mentality, notably severe intermittent aphasia, has given me a different perspective on the thinking process.
Making some effort to learn about historical perspectives on what constitutes reason or rationality, and not assuming that the latest perspectives are necessarily the best.
I could go on but that might be enough for an intro.
My hope is to both learn how to reason more effectively and, if fortunate, make a contribution to the discussion group that helps us to learn the same as a community. mw
A few notes about the site mechanics
A few notes about the community
If English is not your first language, don't let that make you afraid to post or comment. You can get English help on Discussion- or Main-level posts by sending a PM to one of the following users (use the "send message" link on the upper right of their user page). Either put the text of the post in the PM, or just say that you'd like English help and you'll get a response with an email address.
* Normal_Anomaly
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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:
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.