In perhaps as little as a decade, the circuits will be so thin that the phenomenon known as quantum tunneling, where electrons slip through the silicon walls, will make further progress impossible.
For one thing, in much of modern engineering whether designing semiconductor circuits, computers or jumbo jets there are no great quantum leaps in performance waiting to be discovered.
Mr Deutsch short-circuits these debates simply by assuming not by showing that quantum physics and theories of life and knowledge belong to the same explanatory realm.