Jocelyn is back, and this time it's with our good pal Fiona Burnell! Today we get to talk to Ryan Haupt of Science Sort Of  fame. The Topic of today's show is The Dirac Sea! You know how when you cookie-cutter out a cookie from some rolled out dough, there's a hole left behind the size and shape of the cookie? particles are like that too. and the cookie dough is called the Dirac sea: named after Dirac, the great lover of cookies. Listen past the end credits for a bit where I try to explain the dirac sea using bees, and jocelyn sings a song about the everlovin' Hulk! HULK! HULK!