Arcade Fire - "We Used To Wait" (Interactive Music Video)

Holy crap.
Have you heard about the new Arcade Fire "interactive music video?"

No?
Great. It hasn't been spoiled for you yet.

Go to this site: http://www.thewildernessdowntown.com/
Now.
NOW!

(follow the instructions - close all your other windows, and if you use Google Chrome, all the better)