Ridiculous Ideas That Came True

There have always been visionaries who predicted technological breakthroughs a long time before they became reality. But is this really so surprising? Visionaries predict things that we want, and engineers spend decades making it happen because it's what we want. Still, if we can put ourselves into the past when those predictions were made, they may well sound ridiculous to us. Tesla's idea of achieving instant global communication by sending signals and even power through the air was thoroughly laughable in its time, but then came radio, then TV, then satellites, and now wifi. But that's just technology. Other predictions that came true were either logical trends or complete nonsense (like Nostradamus), but a couple are downright uncanny.