Game Theory fans, what do you think the 4th channel will be?

ThiccNigro
So game theory started back in April 2011, then 4 years later in June 2015 film theory was created. Now after another 5 years, just two months ago in July, food theory was made. Seems MatPat likes to wait some years before adding a new channel. Anyway the logo for each channel is symbolized by what would be a light on a controller depicting what player the controller holder is. Game theory (green), Film theory (red), and Food theory (yellow) are 1st, 2nd, and 3rd players respectively. So that means we should see one more channel to complete the 4 (there technically is a 4th channel GTLive but that one doesn't count). This hypothetical 4th channel will probably be blue but I'm curious what you think the channel will have theories of. There are a variety of things the 4th channel could be. A pretty obvious one would be books. It follows the Game and Film theme of consumer entertainment but Food theory kinda proves that the Theorists series can relate to anything with myths but we'll leave that one on the table for now. The theories tend to be light and somewhat comical so I doubt it would take on real conspiracy theories like moon landing being faked. Science theory is possible but I think people like Back Yard Scientist, Cody's Lab, Elecroboom, and Mark Rober already have that covered. So what could be entertaining, light, creates enough theories but still captivating to an audience? My guess is Internet Theory. The internet is so massive there are a ton of different topics to choose from. There's only 1 small problem. All the other channels are based of a 4 letter, 1 syllable word. I'm not sure if this is intentional or just a coincidence but if it intentional, maybe he will be doing a book theory after all. It matches the rule of 4 letters 1 syllable, and he wouldn't have to do just text on a page. He could touch on manga, comic books, children's books, etc. but we probably won't know for a few years now
Game Theory fans, what do you think the 4th channel will be?
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