http://lesswrong.com/lw/xp/seduced_by_imagination/
http://lesswrong.com/lw/ye/and_say_no_more_of_it/
http://lesswrong.com/lw/xp/seduced_by_imagination/
http://lesswrong.com/lw/ye/and_say_no_more_of_it/