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Joined 2 years ago
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Cake day: June 20th, 2023

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  • Disclaimer: I could be wrong or not up to date, but this is my current understanding.

    On the small scale, forces like electromagnetism and gravity pull things together much much faster than the rate of cosmological expansion. That’s why “we” don’t expand, and neither does our frame of reference. There’s a potential end to the universe where the rate of cosmological expansion (which increases over time) finally exceeds gravity and electromagnetism and eventually even the strong force, causing everything to fly apart forever.

    Light waves propagate through spacetime itself, and basically it ends up being that there’s nothing pulling it back from expanding as the space it travels expands.








  • https://youtu.be/cw20VbX1XCc?si=OiZJV8VBsFjWQ4JC

    A lot of people here have the right idea, but are just more pessimistic than me about the industrial capabilities of our civilization if we survive long enough to achieve them. Star lifting is an idea with what I understand to be reasonably sound scientific principles. It’s just a matter of scaling our industry over the next millions or billions of years.

    I like this channel because he’s a fairly optimistic but very reality based futurist. He’ll tell you straight up if something is unlikely or impossible based on our current understanding of science, but he’s one of the few sources I’ve seen that acknowledges the immense scale that even an Earth or solar system bound civilization is capable of supporting with just modern technology.