The theory looks interesting but overall, however it reminds me of things like NAIRU, which is basically a justification of unemployment. Maybe there is some id

The theory looks interesting but overall, however it reminds me of things like NAIRU, which is basically a justification of unemployment. Maybe there is some idea there which can explain why people perceive fairness as they do (why we evolved that way), but that's perhaps about it. The problem is, the unemployed person doesn't care whether or not the NAIRU as a model is fair. They already have their one shot at life, going on right now. So, I think we shouldn't care what the curve is, and focus on the extremes on both sides, because both are bad. Poor people have it bad for obvious reasons, and that should be enough moral justification to not have them at all. Too wealthy people are bad because money translates to power, and this power can be misused. But I agree with the author that we should have progressive taxes, but also basic income (and I think Norway is close on both).