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That's not actually how that works, Y-Chromosomal Adam (Y-MRCA) was not the only man on earth at the time of his life. Each time a basal haplogroup ends a generation without any sons, the person we reference as Y-MRCA ratchets forward a bit because a new person is now the most recent common...

I fail to believe that you can show that life survived a gamma-ray burst or alien invasion.

Indeed. The opportunities to advance humanity and spread among the stars are too valuable to lose, it may be that without the powers interstellar travel is just not something humanity will come up with before going extinct. I'd likely make sure any number of O'neil cylinders and various...

Someone gave them to me so the cat's already out of the bag, and I don't have such an ego that I consider myself vastly better than other humans. Also if I'm the only one and don't create a power-granting machine, the powers could be lost to humanity forever if I happen to die.

Hmm, so logically there was some way possible for me to have been given said powers so willing up a "Machine to give people these powers" should be doable too. As the limitations appear to be arbitrary, it may be possible to remove them by willing "Machine to increase my powers' range" and such...

Huh. That... actually dramatically changes how my plan should work. I don't need to have other people build spacecraft for me, I can just construct something theoretically possible, teleport it a light second away, teleport to it, and build my own daisy chain to available resources so I don't...

Hmm... There appears to be no tonnage limit and no problem with selectively moving stuff if it's within a light second. Note that one light-second is one heck of a short distance by spacial terms, the sun is 499 light seconds aware, so we're going to be somewhat limited. Even many satellites...