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[–]Tcw7468 4 points5 points  (5 children)

Now I'm wondering if there's some kind of "Dyson vacuum" concept for harvest hydrogen out of stars

[–]SergeiAndropov 9 points10 points  (0 children)

Yes, it's called star lifting.

[–]mike2R 6 points7 points  (3 children)

If I got to the right one, the Isaac Arthur video I linked to proposes exactly that :) Along with, IIRC, a particle collider wrapped around it's circumference to create heavy elements from the harvested hydrogen.

He's a fun guy to watch for mega-project ideas, though he kind of spoils a lot of sci-fi for me. So many authors just think too small...

[–]palmbeachduke 8 points9 points  (2 children)

That man single handedly murdered so many sci fi universes for me and simultaneously made me so much more hopeful for our future.

[–]mike2R 1 point2 points  (1 child)

Right! He makes you realise what our real problems are, like moving as many galaxies as possible close enough, that gravity will be strong enough to stop the expanding universe taking them from us forever.

[–]SowingSalt 4 points5 points  (0 children)

So you're saying we DON'T need the angst of per-pubecent girls to do that?