Title text:
This discovery was key to his demonstration of regular/goofy symmetry violation, which won him gold in the theory portion of the X Games.
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3264/
He is a system of subatomic particles
"We are all individual systems of subatomic particles!
"I'm not!"
He's not a system of subatomic particles, he's a very naughty boy!