Programmer Humor

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"I want to live forever in AI" (lemmy.ml)

submitted 7 months ago by [email protected] to c/[email protected]

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cross-posted from: https://lemmy.ml/post/14869314

"I want to live forever in AI"

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[–] [email protected] 2 points 7 months ago (1 children)

There aren't infinite frequencies.

"The mean free path in air is 68nm, and the mean inter-atomic spacing is some tens of nms about 30, while the speed of sound in air is 300 m/s, so that the absolute maximum frequency is about 5 Ghz."

[–] [email protected] 1 points 7 months ago (1 children)

The term “mean free path” sounds a lot like an average to me, implying an distribution which extends beyond that number.

[–] [email protected] 1 points 7 months ago* (last edited 7 months ago)

One cubic centimeter of air contains 90,000,000,000,000 atoms. In that context, mean free path is 68nm up to the limits of your ability to measure. That is flip a coin 90 million million times and average the heads and tails. It's going to be extremely close to 50%.

Not to mention that at 5ghz, the sound can only propagate 68 nm.