[Paaaause. He can't decide if something is funny or if Marty is just a giddy sort of high. But right, cool shit about his place.]

From home, mm. The Maeslantkering's kinda - [cool] - it's a storm surge barrier, keeps the ocean back. Keeps it from surging up the river, I mean. Flooding Rotterdam an' the port. One-a the biggest moving structures on Earth - [yup he's got that phrase memorized] - closes when a storm surge is supposed to be more than three meters. Computerized and shit, does it automatically. Not like the Oosterscheldekering, that's - another storm surge barrier, doesn't operate the same way, though.

[Let him tell you all about the Delta Works.]