Hello and welcome to LessWrong!
I admire your reasons for joining. It is easy to find a group or circle that does not challenge you and then rest on your laurels. Seeking out disagreement and criticism is a hard first step for a lot of people. But don't worry... you will certainly find both here! Not that that is a bad thing.
I see you've already added to the Discussion forum. Good on you for diving in and starting some new conversation. If you have some ideas you want to share and get critiqued but feel they are not fully formed enough for a post of their own, try the Open Thread. Even Open Thread conversations can be quite engaging and constructive (and heated! Don't forget heated).
Also, I don't know if you've read any of the LW literature people tend to reference, but, given your interest in refining your ideas, this) set of posts might interest you.
Thanks for the guidance. It can be intimidating exposing your ideas to a new set of people. I've been reading things here on LW off and on for roughly a year. There is quite a bit of jargon on this site and I've been reading through as many sequences as I have time for to try and fill myself in. I find that even concepts I'm familiar with tend to have sub-context here that doesn't quite allow me to fully understand some of the ideas being discussed. I have a fairy good grasp of map versus territory for example, but my understanding comes by way of The Prec...
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
* Randaly
* 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!
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!