Helical Logic Computation

[JohnnyYesterday]

That sounds a bit high.

General physical limits gives about 10e22 bits/s-cm^3, see:

http://www.orionsarm.com/eg-article/48507b746e356

http://scorevoting.net/WarrenSmithPages/...works.html

Those appear to be talking about irreversible computation, so their figures aren't applicable here since reversible computation is thermodynamically reversible.

That's why it is so efficient, and doesn't turn into a hot plasma from its own waste heat.

I know it's an appeal to authority (in this case relevant authorities), but I tend to think Ralph Merkle and Eric Drexler get their stuff right.