As for bearing, once the child is born that's a sunk cost; as for “being the primary caregiver for a newborn”... Wait. So we're not talking about killing a child straight after birth but after a while? (A week? A month? A year?)
I can't see why that makes a difference in the context of my question, so feel free to choose whichever interpretation you prefer.
For my part, it seems entirely plausible to me that a person's understanding of what it means to be the primary caregiver for a child will change between time T1, when they are pregnant with that child, and time T2, when the child has been born... just as it seems plausible that a person's understanding of what a three-week stay in the Caribbean will be like will change between time T1, when they are at home looking at brochure...
A few notes about the site mechanics
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:
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.)