Practical problems with it don't really matter (unless you are a pragmatist :) There is no reason to suppose that, given an unknown position in that society, s

Practical problems with it don't really matter (unless you are a pragmatist :) There is no reason to suppose that, given an unknown position in that society, someone would choose to max-min. Someone might choose rather to maximize justice, for example. That's what most western philosophers did for a few thousands of years. Rawls' argument assumes his own preferences are axioms without presenting them as such. Many such cases.