Bill Stone @ TED2007
Posted on Tuesday, July 3, 2007
For once somebody makes a case for space exploration not needing the immediate reaction: 'please don't metaphor me in!' (his timescale seems to be off by a couple of decades though):
Embedding doesn't seem to work, so best place to watch the video is over at TED.com.
Once you finish, have a look at this one by Kevin Kelly, it's more abstract, but probably also all the more fascinating.