If you haven't yet seen the amazing Burch/Drexler animation of a working nanofactory, you're missing out on something special.
CRN's Chris Phoenix says:
This illustration of how a nanofactory actually would work should lay to rest any remaining misunderstandings about "fingers" that "grab" atoms. The animation shows pointy molecules being pushed together and trading atoms between them--nothing new in that, except that the molecules are mounted on molecule-sized conveyor belts (also made out of molecules, of course). This is what Eric Drexler has been saying for over a decade, but now it's in a form that will make it hard for even the most wilfully dense skeptics to find something to misinterpret.
CRN's Mike Treder says:
You'll ooh, you'll ahh, you'll gasp, and guffaw (well, maybe not guffaw).
Roger Ebert says:
Both thumbs up!! (Just kidding.)
A note of caution -- the animation file takes a long time to download, even with a high-speed* Internet connection. But that's okay, because it will give you time to pop some popcorn, gather the kids together, and sit down to watch the feel-good movie of the decade!
* For those with lower bandwith, there's a slide show version that loads much more quickly.
PS - If this post seems a little more goofy than you're accustomed to reading here, please bear with me. It's late at night, and I've been at my computer for almost 15 hours straight...