Watch this guy breaking a Rubik's Cube world record at insane speed

I never solved the Rubik's Cube, so when I see this dude breaking the world record for solving six cubes of increasing complexity--2x2, 3x3, 4x4, 5x5, 6x6 and 7x7--in just 6 minutes and 23 seconds, I just can think two things: "That's insane" and "I'm useless."