[TSVIDeo]

I don't know what Loin would say about that, but I would say that you can't always find the choice that will lead to the greatest happiness, even given perfect information about the results of one's choices. Probably you don't disagree. Still, just to be clear, take the somewhat tired example of the post-feminism woman's dilemma: a career or children? Maybe she really likes her job, but she also really wants kids. Choosing both will mean less time with the young ones and less progress in the career, so no matter what she does she's sacrificing something. Nor can you really compare the two types of happiness, since they're so drastically different in kind. It boils down to different priorities, and in that sense there are a number of different, equally rational choices she can make.