The trouble is various incarnations of silicon-based transistors are the best we know how to engineer right now and for the foreseeable future. There will proba

The trouble is various incarnations of silicon-based transistors are the best we know how to engineer right now and for the foreseeable future. There will probably be a stall for at least 5-10 years after silicon scaling ends in the late 2010s/early 2020s while we try to develop a suitable replacement that can continue to the ultimate physical limits.