You've got to hand it to someone who uses our lack of flying cars as proof that innovation has slowed. Then there's this later on: "you or I could walk into a

You've got to hand it to someone who uses our lack of flying cars as proof that innovation has slowed. Then there's this later on: "you or I could walk into a 1940s apartment ... and we’d find it basically functional. We’d be annoyed at the lack of television and Internet — but not horrified or disgusted." But obviously these intense, abrupt changes of hygiene aren't going to be indefinitely repeated; there's only so much filth to remove. And it's not as if there haven't been dramatic shifts in standards of hygiene since then, although they're a bit subtler--look at the chart here on frequency of showering, for instance: http://www.businessinsider.com/charts-that-will-restore-your-faith-in-humanity-2013-5 http://www.businessinsider.com/charts-that-will-restore-your... Of course no one can be certain what the US's economic future will look like, but it seems absurd to argue that all the big changes are over and things will mostly stay the same from now on.