The Svoronos Star Tug can, in principle (assuming perfect efficiency), accelerate the Sun to ~27% the speed of light (after burning enough of the Sun’s mass to transition it to a brown dwarf).[9]

Adequate.

That’s a bit of an oversimplification, but yeah, that’s similar to how an Alcubierre warp drive is hypothesized to work.

poldering intensifies

yeah, #3 is a time machine if you can spam it faster than light can travel 7 inches

Been there. Chose 4. Can you believe they had a slightly different approach to liberation of the working class? Really dodged a bullet on that one.