So there are four Youtube channels (game theory, film theory, food theory, and design theory [all in order of when the channels were released]) and the channels make and look at theories of different genres. Matpat (real name is Mathew Patrick) is the voice and "mascot" of the channel. He was the one to create the first channel, and he almost always voices the videos (with his editors and writers sometimes taking his place if he's busy/sick). But he is now planning to leave the channels to focus on his personal life (his son being the main focus).