Conformal field theory is a type of field theory that has special mathematical properties. It is like a type of game, where the players are the particles that make up the universe, like electrons and quarks. The rules of the game are very special - they make sure that the particles always move in certain ways, so that even if they go a long way away, they always come back to where they started. This helps scientists understand how the universe works, even when particles are very far apart.