Red Dwarfs Will Be Humanity’s Last Home Before the Universe Dies

Re:Red Dwarfs Will Be Humanity’s Last Home Before the Univer... by ithkuil on Monday March 14, 2022 @04:08AM (#30669652)

The time scale is so vast that whatever happens, with whatever definition of "optimism", it's hard to imagine our descendents to recognize themselves into us.

There is un circumstance: that a group of humans today (or in the near future) just time "travels in the future" (e.g. by moving at relativistic speeds, etc, while in cryogenic sleep or whatever) and just happen to witness the late universe without the time actually ticking for them. In that (unlikely) case the same effect that would prevent the species from diverging is the same that would prevent them from getting extinct (not enough time)

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Re:Red Dwarfs Will Be Humanity’s Last Home Before the Univer... by rbanffy on Monday March 14, 2022 @04:38AM (#30669841)

> moving at relativistic speeds, etc, while in cryogenic sleep or whatever

There’s an interesting way to get to relativistic speeds - to get close enough to a supermassive black hole, steal enough momentum so you get very close to c, then, a subjective week later, you do the same around another black hole in a different galactic core to shed your momentum and get back to a manageable speed. An intergalactic civilisation would use supermassive black holes as train stations.

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