Gravitic engines, inertiic compensators, gravy guns, and enormous amounts of power make for a universe in which thousands of gees of acceleration are not only possible, but can also be shielded against.
Ennesby! Status! Can you get us out of here?
They have to be, if you don't want to end up as jelly.
On it, sir! The V.D.A. just fed me an escape route.
That's why you never, ever ever want to hear the following words from your ship's A.I:
Uh-oh. Everybody brace for acceleration.