Man, people love to talk about Eau Rouge, that famous, demanding, and deadly uphill corner that defines the great Spa circuit of this weekend's Belgian Grand Prix. Except everyone it talking about the wrong corner.
As the video above explains, what you're talking about when you talk about Eau Rouge is the pairing of Eau Rouge and Raidillon. Eau Rouge is the little kink at the bottom that passes over the Eau Rouge (red water) stream, and Raidillon is the sweeping uphill right that used to have a wall on both the inside and the outside but now has a bunch of runoff everywhere that everyone takes flat out.
I'm sure you all appreciate how serious this is.