Futurists are fond of saying that science fiction eventually becomes science fact. Precisely when that occurs, however, is never easy to pinpoint.
When Japan welcomes millions of foreign travelers for the 2020 Tokyo Olympic and Paralympic Games, one thing the visitors will see apart from the world’s best athletes is the world’s best robots. It may sound like the realization of countless science-fiction fantasies, but humanoid robots are now quite commonplace in big cities like Tokyo. This is a dream that was long in the making.