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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:
- Your Intuitions are Not Magic
- The Apologist and the Revolutionary
- How to Convince Me that 2 + 2 = 3
- Lawful Uncertainty
- The Planning Fallacy
- 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
- That Alien Message
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 message, and I've stolen heavily from it.)
Several people have alreadt given good answers to your position on infanticide, but they haven't mentioned what is in my opinion the crucial concept involved here: Schelling points.
We are all agreed that is is wrong to kill people (meaning, fully conscious and intelligent beings). We agree that adult humans beings are people (perhaps excluding those in irreversible coma). The law needs to draw a bright line separating those beings which are people, and hence cannot be killed, from those who are not. Given the importance of the "non-killing" rule to a functioning society. this line needs to be clear and intuitive to all. Any line based on some level of brain development does not satisfy this criterion.
There are only two Schelling points, that is obvious, intuitive places to draw the line: conception and birth. Many people support the first one, and the strongest argument for the anti-abortion position is that conception is in fact in many ways a better Schelling point than birth, since being born does not affect the intrinsic nature of the infant. However, among people without a metaphysical commitment to fetus personhood, most agree that the burdens that prohibition of abortion place on pregnant women are enough to outweigh these considerations, and make birth the chosen Schelling point.
There is no other Schelling point at a later date (your ten-month rule seems arbitrary to me), and a rule against baby infanticide does not place so strong burdens on mothers (giving for adoption is always an option). So there is no good reason to change the law in the direction you propose. Doing it would undermine the strengh of the universal agreement that "people cannot be killed", since the line separating people from non-people would be obscure and arbitrarily drawn.
I do think there are some advantages to setting the cutoff point just slightly later than birth, even if by just a few hours:
*evaluations of whether a person should come into existence can rest on surer information when the infant is out of the womb