Hello. Ray Kurzweil says, in 'Singularity is Near' (I paraphrase slightly) "One cubic inch of nanotube circuitry, once fully developed, would perform 10^24 cps per second". However, on the MindX forum, a person known as Extrasense has supposedly refuted this claim. ES posted: Let us do a reality check on your numbers :) Uncetainty principle: dE*dT=h dE=h*10^12 = 6*10^-34 10^12 J =6*10^-22 J /per transistor per computation E= dE*10^12=6*10^-22*10^12 = 6*10^-10 J/sec /per transistor per second E_extro = 10^19*E = 6*10^9 J/sec = 6*10^9 watt /per 10^19 transistors So, your inch size computer wil produce approximately as much of HEAT energy as all the electric power output of US! The possibility you are missing is: the claims that you love so much are totally bogus.' This would APPEAR to debunk Kurzweil, but I am no mathematician and so cannot tell if this is a genuine, or bogus, mathematical proof. I suspect it may be bogus because its poster (extrasense) has something of a bad reputation as a troll (google his name to see how many forums he has been ejected from for bad behaviour. So, I was wondering if more qualified people than myself could proofread extrasense's maths-based evidence. Is it bogus or not?