second, '' What I mean is that Moore's law cannot continue forever which means at some point we will reach a point where chips cannot be made more efficient. '' -- you can not reach the Planck scale. The closer you get, the more it takes (and gives, cf. Edward P. Tryon) to advance. There is ONE BILLION times , 9 orders of magnitude more spacetime towards the within of the Planck scale, than it is towards the without of the Hubble scale.