This is definately off topic but I also have thought about supermarkets a lot lately but mostly how they are a regression of the prvious thing which was "the bazaar" - because you limit competition "within the supermarket" - and hide the externalities, you get much worse quality of foods. Individually competing independent producers, put in very close prodimity so you can easily judge their output with a glance is incredibly effective. You can also direclty influence the producers themselves with your cash. Yes its usually "messier" but works gets you so much healthier food in the end. Just market forces at work.