How???

Exactly, these authors doing too much.

usually this happens when you came from a tense or tiring situation. Your body just relaxes automatically and you can't feel (?) ypur surroundings.

Right and so you fly to the other side of the carriage, it would be understandable if the distance was close to where she literally leaned forward from exactly where she was sitting because that's a realistic situation that could happen with close seating. But we already saw the carriage so we know who exactly why it doesn't make sense with the distance they had and why it was something we noticed in the first place.

I think its the drawing angle Like how fish eye use in camera . No carriage was that wide use because of instability in between the platforms. So that's why on the panel she was flung across it was just closed. Carriage usually has a 6cm knee to knee distance i think

I'm an architecture student that isometric view ain't fooling nobody, the space was big.

Really, never seen a carriage the spacious before. Its impractical with the terrain