Makes sense to me that a ship would need to accelerate to the proverbial 88mph to punch a hole through realspace in order to enter hyperspace. *shrug*
But 88mph is a normal speed, and it’s completely evident from TLJ, that the Supremacy was hit at a much greater speed than normal speed, and the ship was accelerating to lightspeed, which is a contradiction in terms.
So the only two options are 88mph and lightspeed? There’s nothing in-between?
No, there’s normal speed driven by normal engines with normal physical limits, and there’s lightspeed for which you need a hyperdrive. The former is normal motion in real space, while lightspeed is achieved in another dimension called hyperspace. The idea of achieving lightspeed or entering hyperspace by accelarating to an unphysically high speed in normal space is as preposterous to me as saying a man can fly by running really fast while flapping his arms.
Is it as preposterous as sound in space, fire in space, laser bolts instead of laser beams, every planet in the galaxy having breathable air and Earth-like gravity, an asteroid field having densely packed asteroids, an asteroid having Earth-like gravity, a million other things I can’t think of off the top of my head, oh and also the ability to lift objects with your mind?