is just defining some function f okay what this is saying is that there's no way in general with high probability to compress this 2 to the N bit thing and a small very small representation this is basically proved by a counting argument is too many small series too few small circuits and too many randomly chosen functions so a random one is just not going to be represented by something small there's a simple incompressibility type argument so okay the universe is littered with you know these really really hard functions from the