[gattis]

After reading the linked-to Humbird paper, I'm not so sure I agree with the glum outlook. A huge chunk of the cost seems to be macronutrients, which currently, yes, are very expensive. But even the report mentions emerging technologies such as plant protein hydrolysates that could be done much cheaper at this scale. The problem seems to be that nobody has ever had any reason to look into optimizing costs at this insane scale. I don't think we should just assume that means it won't get much cheaper once we do.