To deal with these ideas correctly, you need to use anthropic decision theory.
The best current online version of this is on less wrong, split into six articles (I’m finishing up an improved version for hopefully publication):
http://lesswrong.com/search/results?cx=015839050583929870010%3A-802ptn4igi&cof=FORID%3A11&ie=UTF-8&q=anthropic+decision+theory&sa=Search&siteurl=lesswrong.com%2Flw%2Ffxb%2Fwhy_anthropic_probability_isnt_enough%2F81pw%3Fcontext%3D3&ref=lesswrong.com%2Fmessage%2Finbox%2F&ss=3562j568790j25
To deal with these ideas correctly, you need to use anthropic decision theory.
The best current online version of this is on less wrong, split into six articles (I’m finishing up an improved version for hopefully publication):
http://lesswrong.com/search/results?cx=015839050583929870010%3A-802ptn4igi&cof=FORID%3A11&ie=UTF-8&q=anthropic+decision+theory&sa=Search&siteurl=lesswrong.com%2Flw%2Ffxb%2Fwhy_anthropic_probability_isnt_enough%2F81pw%3Fcontext%3D3&ref=lesswrong.com%2Fmessage%2Finbox%2F&ss=3562j568790j25