The first is about Moore's law that Sheldon Brown talked about (that processing power per dollar doubles about every 18 months) and how soon this evolution will STOP. processors will not physically be able to get more dense or efficient.
The second is about the possible replacement for conventional processors once they stop accelerating: quantum computers. Quantum computers would be beyond anything we are capible of today and would increase in efficiency exponentially.
I can't wait for the future~!