Any question answered...

What I don't understand is how Dirac's equation makes it possible for matter and antimatter to just pop in and out of existence. Doesn't that contravene some matter conservation 'rules' we are supposed to know about?

Disclaimer: I was going to ask this in the maths thread the other day after watching Everything and Nothing on the turbo. Sub-titles ftw

Matter + Anit-matter = no matter. Haz conservation.