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A comment on Relativistic Spaceship. Parent comment

Re:Relativistic Spaceship by hnuser123456 on Tuesday February 06, 2024 @08:29AM (#39273958)
schwarzschild radius of mass of the universe (3.4 * 10^54 kg) = 5.05 * 10^24 km

radius of universe = 4.4 * 10^23 km (47b ly)

mass required to have schwarzschild radius of 4.4 * 10^23 km = 2.96 * 10^53 kg

Surely we are still discovering the implications of these numbers being so close.

I like your time-reversed black hole framing, thanks for that.

https://www.wolframalpha.com/input?i2d=true&i=+schwarzschild +radius+of+mass+of+the+universe

https://www.wolframalpha.com/input?i=radius+of+universe

https://www.wolframalpha.com/input?i2d=true&i=+schwarzschild +radius+of+2.96*Power%5B10%2C53%5D+kg

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Re:Relativistic Spaceship by MilStdJunkie on Tuesday February 06, 2024 @09:50AM (#39274769)
IANAP, but possibly because you're measuring different attributes of the same thing - i.e., mass - but we as a species don't really understand the fundamentals of what mass actually is.

Before ANGRY KEYBOARD SOUNDS commence, I'm not saying we don't know what mass is, I'm saying fundamentals. I.e., why is mass. What causes it to come into being? Bulk entanglement, i.e., a function of probability or "mass as destiny"? Tiny signals? Lots of rubber sheeting? Etc.

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