I'm not arguing the economics work out given today's prices and all sorts of disequilibria. I'm just saying everyone cooking is ipso facto inefficient, so they

I'm not arguing the economics work out given today's prices and all sorts of disequilibria. I'm just saying everyone cooking is ipso facto inefficient, so they has to be some context in which communal eating is economic. If that is buffet-style and a hefty land value tax to stop landlords from milking the restaurant, so be it.