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Comment Re:Wave equation? (Score 1) 610

Wouldn't the other limitation of a computer powerful enough to simulate all of the particles in a universe be that it would have to be as big or at least a significant fraction of the universe itself?

It's not clear that we know the answer to this question. In terms of processing speed, there's no requirement for simulating at full speed, so this is not an issue. In terms of precision, a bit- (or word-) serial approach can achieve any finite precision with merely a reduction in speed, so also not an issue. So the remaining questions are (a) is a simple finite precision Turing machine sufficient for simulating the universe and (b) how much space do we need for information? (a) comes down to a strong form of the Church-Turing thesis, which Is we're not sure; (b) is a function of both maximum density of information and the actual information in the universe (taking into account redundancy), which are closely linked (see also the holographic principle).

In summary, who knows?

Intel

Submission + - Intel to include 802.11n in Centrino line

filenavigator writes: Intel announced at the Globalcom 2006 Expo that they will be including the 802.11n hardware in their Centrino chips. It will be interesting since they said that they will start doing this sometime in the middle of 2007, and the 802.11n standard is not to be finalized until 2008. Additionally the 802.11n standard has been dogged by problems. Hopefully this will force the vendors to start working together to create compatible hardware.

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