sample i from p i given X they can go to the reverse profit you do the sampling here you use random seed what is it random seed that is really use sequence of random bits that was used since the recipient knows the distribution knows I know sex they can back out the sequence of random bits that caused you to sample I so can reconstruct the random bits use a sample PI given x those findings were also sent those are log 1 over PI given X random bits which we now don't have to count what do I mean with that imagine