Imagine handing a smartphone to a caveman. The leap in technology from fire to 4K video might make his brain explode. But what about someone from more recent times? Imagine showing that same smartphone to an assembly line worker from the early 20th century. That device would be absolutely mind-blowing, but the path to such an achievement could in fact be fathomable. Jules Verne was already imagining space travel more than a hundred years before it became reality. Only 12 years after Henry Ford added a mechanized belt to his assembly line pumping out Model T’s, Nikola Tesla described the concept of instant wireless communications over instruments that would be “amazingly simple” compared to the telephone and that could be carried “in his vest pocket.”