Which is fucking cool because it's one of the few space travel things that really does work. Like if we can figure out the fuel/propulsion thing and some kind of equivalent to deflector shields (not for space battles but for all the random shit in space that could destory your ship in a collision, especially if we get up to relativistic speeds), we could have space travel where you can walk around normally on the ship.

Also the gravity increasing ships like Goku used in DBZ, so we could actually have someone doing extreme gravity training while en route to a big fight.

And it works for both acceleration and deceleration, only difference is you're either travelling up or down.

Also loved the special seats they used when doing combat maneuvers. ST didn't just make up artificial gravity (since their ships moved forwards rather than up), they had inertial dampeners, because the evasive maneuvers would have been much more dangerous than the shocks from getting hit.

ST is more rooted in science than SW, but parts of it are just as much fantasy as the force, which was depressing to realize when you're hoping for humanity to eventually go in that direction. The biggest human tech fantasy in the Expanse is an engine upgrade that gives improved thrust and efficiency. Not to light speed, but just by like an order of magnitude. And they've even got a brutally realistic scene about the discovery that was great world building imo.