Another point I should elaborate on.
"Would you sacrifice yourself to save the lives of 10 others?" you ask person J. "I guess so", J replies. "I might find it difficult bringing myself to actually do it, but I know it's the right thing to do".
"But you give a lot of money to charity" you tell this highly moral, saintly individual. "And you make sure to give only to charities that really work. If you stay alive, the extra money you will earn can be used to save the lives of more than 10 people. You are not just sacrificing yourself, you are sacrificing them too. Sacrificing the lives of more than 10 people to save 10? Are you so sure it's the right thing to do?".
"Yes", J replies. "And I don't accept your utilitarian model of ethics that got you to that conclusion".
What I figured out (and I don't know if this has been covered on LW yet) is that J's decision can actually be rational, if:
The other thing I realised was that people with a utility function such as J's should not necessarily be criticized. If that's how we're going to behave anyway, we may as well formalize it and that should leave everyone better off on average.
J considers the social shame of killing 10 other people to save himself worse (according to this utility function) than his own death plus a bunch of others.
Yes, but only if this is really, truly J's utility function. There's a significant possibility that J is suffering from major scope insensitivity and failing to fully appreciate the loss of fun happening when all those people die that he could have saved by living and donating to effective charity. When I say "significant possibility", I'm estimating P>.95.
Note: I interpreted "char...
So after reading SarahC's latest post I noticed that she's gotten a lot out of rationality.
More importantly, she got different things out of it than I have.
Off the top of my head, I've learned...
Where she got...
I've only recently making a habit out of trying new things, and that's been going really well for me. Is there other low hanging fruit that I'm missing?
What cool/important/useful things has rationality gotten you?