5 ms·
I'm about as far from an expert as you can get, so hopefully someone more knowledgeable can shed some light on this: "A classical computer seems to need time e
by elemenohpee 15y ago
I'm about as far from an expert as you can get, so hopefully someone more knowledgeable can shed some light on this:
"A classical computer seems to need time exponential in n to predict precisely the behavior of a general quantum mechanical system of n particles. (Yet nature manages to do it in real time.)"
How could we know this from inside that system? For all we know it could take a billion [whatever unit is used to measure time outside of our dimension] to calculate each step, and it would still look fluid to us.
- brg 15y agoThe usual time measure of computational complexity is in units of computation, not in terms of the wall clock time it takes to for a calculation to run.
- elemenohpee 15y agoThen what does "real time" mean in this context?
- palish 15y agoBecause, read Feynman's paper. No really, read it. His writing style is very accessible. Ignore the formulas; read the words. http://www.phy.mtu.edu/~sgowtham/PH4390/Week_02/IJTP_v21_p467_y1982.pdf http://www.phy.mtu.edu/~sgowtham/PH4390/Week_02/IJTP_v21_p46...