Nanosystems, or Nanobots?

Goatchurch on the MundaneSF blog posted about his skepticism of molecular nanotechnology. He asked why we think a self-propelled miniature machine can exist, when we still don't have a robot that can vacuum the living room. (Given the existence of Roomba, that's another claim which, in itself, I would highly debate.) Here is the response I put there.

The failure of modern robotics is a software problem. But whether or not that is solvable is not relevant to nanotechnology, which rarely considers molecular robots. There is vast potential in nanotech products and materials that are not only dumb, but downright inert and permanently motionless. The potential of nanosystems which, while not motionless, are nevertheless dumb and sessile, is even more vast.


Look at this computer animation concept. Note that nothing in the assembly line depicted here involves individual nanorobots with independent self-propulsion, self-guidance or decision-making. Independence and intelligence are not required of molecular machinery. Don't confuse the "Universal Assembler/Disassembler" myth with the nanosystems that are actually being proposed.

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