Gallifreyan Jedi

Nice catch. Tarachin: Travel edition. I agree with this interperetation.

I learned something today, but for the sake of the game, let's go with the variant.

A shardblade. in soviet Nalthis sword posesses you. Would you rather be an allomancer with ulcers or an elantrian with dyslexia?

Tlr altered human dna to survive the ash, so i assume he could've done the same for fish, if there really is such a thing

I don't think gravitation would work for interstellar travel. Once you escape roshar's gravity, you're multiplying by zero. Then again, maybe you could amplify the gravitational assist as you slingshot around another planet in the system, or even the local sun, but that would require some serious hacking, assuming the surges are anchored to roshar itself.