The gravity? Like, did she mean the force of gravity, or the seriousness? Sam suspected the first. Part of why he'd only stuck a toe in the whole pool of ideas that was theoretical physics was the mindbending weirdness of what gravity does to time.

Then Sam got outside the Med Bay, and saw the state of the lights in the hallway. That gave him pause. And he stopped in his tracks to look up then down the all, frowning harder.

"…uh…I guess the ship got hit harder after I was out. Is that why the lights are like that?"