I woke up from a nap in my hotel room to the sounds of this. I rushed down to watch. I'd like to point out it's 9°C in Vienna today. I love watching others perform this piece almost as much as I love playing it.
Maybe, just maybe for the people who have never touched a piano before, this may sound like a just a normal piece. But for the rest this is like an alien tech. One of the hardest pieces to play. And worth worshipping who ever can play this. This is like becoming the Eminem of piano.