This interview with Hugh Herr blew my mind. The guy is an intergalactic boffin, a real-life Tony Stark.
I listened to the interview three times, just to make sure I got every word. Afterward, I ordered a copy of this:
The Sorcerers and Their Apprentices: How the Digital Magicians of the MIT Media Lab Are Creating the Innovative Technologies That Will Transform Our Lives
by Frank Moss