Why Can They Exist?

The short answer is this is just a number three. We don't know why three and why not one. It's not something in the equations of math of the universe. They'll maybe tell you why they have to exist. Not right now. Right now, it's just descriptive. Sort of the way we used to not understand why there were so many atoms. Like, why isn't there just hydrogen? Why are these other weird atoms also out there?"