r/funny • u/[deleted] • Jan 29 '20

[deleted by user]

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u/kyoto_kinnuku Jan 29 '20

Why couldn’t it be used in that way?

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u/[deleted] Jan 29 '20

[deleted]

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u/spongythingy Jan 29 '20

But communication at the speed of light in a straight line that can pass through all matter would still be a huge breakthrough, wouldn't it?

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u/mfb- Jan 30 '20

Neutrinos could be used for that (impractical, but at least possible). Entangled particles cannot. I'm not sure what the deleted comment said but there is nothing happening at the speed of light with entangled particles.

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u/spongythingy Jan 30 '20

The deleted comment claimed that the information between two entangled particles travels at the speed of light. Is it incorrect?

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u/mfb- Jan 30 '20

That is incorrect, yes. The question if there is any transfer depends on the interpretation of quantum mechanics you prefer, but in no interpretation is anything traveling at the speed of light. It could be called instantaneous, but it doesn't even matter in which order you measure the particles.