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Physics, Astronomy & Cosmology / Re: How does light move in a vacuum?
« on: 01/12/2020 13:20:35 »Quote from: Evan
- Since nothing can go faster than c, if c=0 then you have an immobile universe which cannot sustain life
Or possibly a universe composed of tachyons, and whatever might evolve from that. Might be good for sci-fi.
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Due to the E=mc2 , if c=∞, it takes an infinite amount of energy to create mass, so there can only be massless particles traveling infinitely fast, and no matter.
If we are postulating that c could be infinite, we could also have an infinite cosmos, with infinite energy available, so an infinite amount of matter would be inevitable.
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Another comment from that video: c is actually the speed of causality. if c=∞, then we would be potentially affected by everything else going on in the universe, and it would be hard to tell what event causes other events(ie the concept of time would be very different).
Come back David Bohm, all is forgiven!