already huge as you can see um in something like chess it is way way huger okay and therefore it's not possible to actually search the entire tree because you need to consider every single possible future situation from the board position where you're in right this here is the board position where you're in and this is the future the entire future of the game so every single possibility so alpha zero uses this thing called a monte carlo tree search it has several components so it's first component and they right here they have