I'd disagree that it's impossible to find the decisions made that lead to a lifestyle, too. Assuming you have the cooperation of the person whose lifestyle it is, I think it's not too hard to decode what decisions they make wrong, what bad paths they've taken, and how to change behaviours.
This does assume sufficient time and intellect to analyse things well, of course. In cases where there is a failure of imagination or intellect, then the work of the external guide/detective is much harder. And in cases where there's narcissism or psychopathy, then it's pretty near impossible.[ Parent ]
On local maxima etc., I don't think it is necessarily 'best' to always work to the biggest summit possible. Overall a series of local maxima may be more pleasant to experience.[ Parent ]
*I just googled for 'assume a spherical cow', but ironically the second author on that paper is one of the people who had a large influence on my thinking in this field. Although I was always at a disadvantage because I was trying to bridge this and bog standard Chomskyian linguistics. Also, my strategic decision making at the time was extremely poor. I should have had a year out before starting graduate school. I'll make sure anyone else I have to suggest it to does.[ Parent ]