Meta is the game within the game. If you are interested in it (not necessarily so you can learn some magic technique but just for interest) it's best to ask someone other than Chewy 😂 bc he doesn't understand the question
One type of game about the game (or meta game), something I just recently became aware of, is to take into account how much energy you have to apply to maintain a position compared to your opponent.
Bjj does not recognize the concept of people thinking for themselves, trying things out, and coming up with new ideas. That would be "revisionism". Any and all techniques you might ever need to do were already thought of 100+ years ago by Master Helio.