Turns out that Doug Engelbart was a real visionary. His core work was in looking for ways that technology could "augment human intelligence." What does that mean? You know how fast you can find something out by using a search engine across the Internet? That's it.
Engelbart saw all of this coming way back in the 1960s. Along the way he invented the mouse, developed one of the first examples of "hypertext" (a precursor to HTML), and was one of the first to pioneer the concept of a Windows-like interface. He also built one of the first videoconferencing systems.
Not bad for a day's work. And this was before anybody was really motivated by stock options and IPOs. More on Englebart can be found here.
— R. Scott Raynovich, Editor in Chief, Light Reading