In 1914, nudity was easy to imagine, but not gentlemen in public without hats.
They thought that butts would be way toned in 1950. But they were not far off from 2015's Venice Beach, Dolores park, Seattle, club kids, Coachella or Burning Man.
Perhaps it's a vision of the kind of utopia we'd have if the two World Wars had been avoided (but see Piketty, and his assertion that the destruction of all that capital broke the grip of the wealthiest on public policy, creating social mobility).
(via Diane Duane)