[Silently wrestling it with an uncommonly long time (for her), Hange rubs her forehead and works to grasp the idea.]

Bill has alluded to this kind of thing before... keeping more of his body in a higher dimension, having eyes in a higher dimension...

[This is so frustrating!!! Her home could be so much further along, Hange could have a better platform to understand and explore this stuff, if scientific and technological process hadn't been repressed for literal decades. And here she is, racing to catch up to ideas that are kid stuff to some of the scientific-minded people here.]