cost of two to the end time as you would have exhaustively you take to the end over end of the ten time okay and you do this for all polynomial size circuits so let's just say you do this for every circuit in particular s you shave off some polynomial into the tenth is enough okay for for our purposes suppose you can do that just a tiny sliver off exhaustive search then you'll be able to prove for the same circuit class that there it that it cannot compute sorry in X cannot be so so X is not in people okay so so what's the intuition behind