Quote Originally Posted by sycld View Post
perhaps that's true, but tunneling and heat dissipation are different in that they are physical limits that will literally not allow the device to operate, economically or not.

as for quantum computing, it unfortunately is only more efficient than a classical computer for a rather circumscribed set of a problems, if it can be implemented at all.
All that's currently possible with quantum computing, as far as I'm aware is double digit addition.

Tunnel and Heat dissipation of course are the more pertinent issues. More so tunneling given Moores. We are at the micrometer range already, if I recall.