This is sort of the interesting part for me > commercially viable for Amazon why does it have to be? What if the business that Amazon chose to engage in simp

This is sort of the interesting part for me > commercially viable for Amazon why does it have to be? What if the business that Amazon chose to engage in simply isn't commercially viable? I personally think there is a way to make it viable but I am almost certain that'd significantly bite into the crazy profit margins Amazon is reaping. And maybe that's the explanation, maybe Amazon's huge profits are largely coming from ignoring market rules that everyone else needs to abide by and, when the market is made fair, they'll still be profitable, but forced by competition to survive on much thinner margins.