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glitchc
on March 9, 2024
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An all-optical general-purpose CPU and optical com...
Indeed, as orlp mentioned, light is self-propagating and does not require a medium. This is broadly true for all EM waves.
aj7
on March 9, 2024
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But it needs SPACE, on the order of a few um minimum, that cannot be occupied by other devices.
Dylan16807
on March 9, 2024
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We're talking about a CPU, not light traveling in a straight line forever.
goatlover
on March 9, 2024
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Why isn't the EM field the medium? Or even spacetime?
aj7
on March 9, 2024
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You are confusing geometry, and the excitation traveling through that geometry.
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