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Simulating the Universe

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Numsgil:
Assuming that the universe is run with a fixed time step (23*10^-42 units per second) and discounting any relativity effects, and assuming that there are 2.7 * 10^83 particles in the universe to calculate, and assuming these particles can be simulated with an n log n run time, I compute the power of a computer capable of simulating the universe at 10^125 FLOPS.
 
 Given that a supercomputer now days is 280.6 * 10^12 FLOPS, and using Moore's law that computing power roughly doubles every 24 months (and assuming this growth rate is constant into the foreseeable future, which I doubt it is) we will have a supercomputer 741.16 years from now capable of simulating the entire universe in real time.

EricL:
You really worry me sometimes bud...

Numsgil:
You're like the 5th person to tell me that today

Hehe

Testlund:

--- Quote from: Numsgil ---Assuming that the universe is run with a fixed time step (23*10^-42 units per second) and discounting any relativity effects, and assuming that there are 2.7 * 10^83 particles in the universe to calculate, and assuming these particles can be simulated with an n log n run time, I compute the power of a computer capable of simulating the universe at 10^125 FLOPS.
 
 Given that a supercomputer now days is 280.6 * 10^12 FLOPS, and using Moore's law that computing power roughly doubles every 24 months (and assuming this growth rate is constant into the foreseeable future, which I doubt it is) we will have a supercomputer 741.16 years from now capable of simulating the entire universe in real time.
--- End quote ---

Umm...You were saying, Nums? I don't follow the math here, but... I've heard there is a limit how fast you can make a computer. I've heard they are close to the limit and they need to invent new types of circuits to make the computers more powerful. Some even fear the computer market will come to a halt because of it. Hmm... In 700 years from now I expect this world to be dead anyway, seeing as how we treat it.  

Numsgil:
I make no claims that Moore's law is likely to hold.  It's mostly just some interesting math.

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