[He'd be better at explaining this if he were thinking clearly.]

Um, well, then it doesn't go any further. Trains are hard to stop, so let's hope the end of the track doesn't just sneak up on you.

[He waves a hand dismissively.] Sorry, something like this must be incredibly boring to someone unfamiliar with it all. It's just strange how my world and this one seemed to evolve in such different ways.