i'm a little confused
it seems like they're describing a chemical reaction, and then calling it, a robot.. ?
An electric battery is just a chemical reaction
Seems like they arranged some molecules, and by throwing certain chemicals at it cause it to move and do very, very, very tiny things. I'm guessing the order in which they throw the chemicals at it comprises "programming" it, and throwing the right chemicals in the right order can make it move like a robot (i.e. a conventional macro-mechanical robot).