> I would be interested to hear what people think about the possibility of
> extending the reign of Moore's law beyond 2020, when we hit atomic-sized
> components, dissipating kT Joules per operation, assuming it continues on
> its merry path for the next 20 years.
I think the dissipation problem can be dealt with using reversible
logic, there is already a fairly large literature on the subject.
As for size, it seems like we need a jump to nuclear densities
("femtotech") to go beyond nanotechnology. That might be a real limit
since nuclear matter is so unstable at our energy/density scale:
We don't have anything like Drexler's proofs of concept for femtotech.
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