John Hockenberry/Hugh Herr talk about "human augmentation" and "Human 2.0"

I just watched the video of the John Hockenberry/Hugh Herr talk about "human augmentation" and "Human 2.0" -- electronic prosthetics and new-age wheelchairs, among other topics -- which you can get to from this site. It starts out a bit slow, but contains really interesting tidbits about, for instance, nerve regeneration...