Universe's End:
Lucus Rose on 6/9/2021 8:02:36 PM
Episode last modified by Lucus Rose on 6/9/2021 8:02:36 PM
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https://fictionbranches.net/fb/story/30969 (1)
Time travel is the solution for lots of things. "Oh, no, I made a wish to change the sun and it was a special time when the wish range was bigger than normal so I can't do it for another six months". Travel back in time to when it happened and make the wish to change it. And any wish that "can't be reversed" can be reversed by travelling back in time to just before the wish was made, and making your new wish the one that came first and can't be reversed.
In this case, it'd require a LOT of complicated wishes to pull off a 'time travel' solution. It'd require knowledge of both space and time, and knowing just when and where to time travel to, how to reach the alien civilization that set off the universe-destroying weapon in the first place, and all sorts of other things. I might add more to that story along those lines, along with exploring the viability of another solution Zoe mentions when she learns of the full scale of the impending disaster.
@Christine L. Wouldn't most of those issues be solved just by having a bigger version of the star map, or even just creative use of the existing one? Simply look at the spherical bite it's taken out of the milky way and measure it's curvature, then you can work out where the center of the sphere is (and thus the location of the World-Destroying aliens), and the radius of the sphere (and thus how long ago the aliens destroyed the universe, once you divide by the speed of light) to within some nice margin of error. Of course that doesn't solve the issue of actually getting back there and fixing it, which the stone may or may not actually be capable of; but anyway the point is the star map they already have can already solve a lot of problems if they decide on time travel.