> So consumer electronics will be based on silicon, and outrageously expensive supercomputers will use graphene or diamond or any one of a number of currently s

> So consumer electronics will be based on silicon, and outrageously expensive supercomputers will use graphene or diamond or any one of a number of currently speculative technologies. Outrageously expensive supercomputers are massively parallel. For massively parallel loads, the fastest chips are the cheapest chips. If the new stuff cannot break into consumer space, there is no market for it above consumer space.