Also if magnus carlsen doesnt know a line, which inevitably…

Also if magnus carlsen doesnt know a line, which inevitably comes up often once the game has transposed into certain middlegames or even sooner, as there are far too many possible positions in chess to memorize them all, so hes admitting if his opponent studied the exact line with top engine and memorized , carlsen could have been beaten in bullet or blitz via checkmate not time out. That is if carlsen didnt venture into unchartered waters, thowing engine memorization out the window,