this post was submitted on 16 Apr 2025
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Science Memes

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[–] themoken@startrek.website 30 points 1 week ago (10 children)

Light speed is a "you must be this clever to participate" barrier to becoming an interstellar species, that's all. Even if it's not breakable, it just means you gotta be able to plan hundreds or thousands of years into the future.

[–] smeenz@lemmy.nz 8 points 1 week ago (1 children)

It's not "just" the speed of light though, light is limited by the speed of information, also known as the speed of causality. If you were to somehow exceed that, then your future light cone becomes very messed up, and effect starts to be possible before cause.

In other words, literal time travel

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