I imagine step 1 will be figuring out a way to reverse entropy?
That’s actually [the _last_ question](https://users.ece.cmu.edu/~gamvrosi/thelastq.html), not the first.
I liked the DS9 episode where the mutants realized that the universe was collapsing into the Big Crunch, so they demanded “antigravity generators, lots of them!” Their cosmology was wrong, but only because the show had the misfortune to be written in the past. Their enthusiasm was great :)