> All productivity numbers are per hour which numbers? GP was talking about numbers of companies and the article is pretty low on data either way. In any case,

> All productivity numbers are per hour which numbers? GP was talking about numbers of companies and the article is pretty low on data either way. In any case, the points I was trying to make were: there are eventually diminishing returns on individual productivity and looking at the number of startups is a very weird way to evaluate how useful a technology is. > the USA, which did not have to rebuild after the last war. So the post-war US economy should be directly compared to today's while completely ignoring the war?