Cosmos: A SpaceTime Odyssey: Season 3, Episode 9 - ProjectFreeTV

3 - 9: Magic Without Lies

In the counterintuitive realm of quantum mechanics, light can be two contradictory things, and somehow — no one knows how — an unseen observer can alter the nature of reality. Meet the man who stumbled upon this hole in reality and the still-unfolding technological revolution that it made possible.