as every instruction is determined
所在版块:求学狮城 发贴时间:2007-09-24 16:01  评分:

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so it's difficult to invent some algorithm that generates non-pseudo random number under the current architecture.

I feel it's enough to use pseudo random number to simulate the randomness, with seed set randomly.

A more interesting question is this:

Does random really exist?

Think about tossing a coin, the result (head or tail) is determined by the initial speed, gravity, wind direction, table material etc. If the modeling of the enviornment is complete, the result will always be the same under the same parameters.

So the randomness comes from the inability of describing the world completely, is that true?
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在计算机上,怎么产生非伪随机数呀? bugzzj   (0 bytes , 678reads )
there is hardware random number generator 吴永铮   (567 bytes , 351reads )
how random is it? icky   (0 bytes , 344reads )
It uses temperature and electronic noise 吴永铮   (364 bytes , 435reads )
you mean not "pseudo random numbers"? icky   (0 bytes , 304reads )
yes. bugzzj   (0 bytes , 371reads )
I don't know any existing algorithm generating non-pseudo random number icky   (70 bytes , 453reads )
I thought about this question before. One solution is to have distributed comput simon   (367 bytes , 378reads )
man, it's still deterministic, just that the model is very complicated.... :) icky   (0 bytes , 350reads )
everything is deterministic. only difference is how complicated the generator is simon   (42 bytes , 530reads )
yes, if everything is deterministic, how does the random come from? icky   (32 bytes , 411reads )
it's just a ideal concept. like poisson. there's no real poisson. simon   (298 bytes , 324reads )
agreed... "to some extent"... icky   (0 bytes , 378reads )
nothing, just for fun. bugzzj   (0 bytes , 421reads )
as every instruction is determined icky   (619 bytes , 360reads )
Sometimes it is not possible to describe the world completely 香陵居士   (27 bytes , 427reads )
maybe bugzzj   (741 bytes , 414reads )