> That instruction is a flaw in the experiment. It's always impossible to tell, for any given sequence, whether it was produced by a fair die. There's nothing a

> That instruction is a flaw in the experiment. It's always impossible to tell, for any given sequence, whether it was produced by a fair die. There's nothing an experimental subject can do to make the impossible more impossible. I don't think it's a flawed instruction -- i.e., I believe most participants will read it as intended, and it will produce interesting results. I read it as follows: "Suppose we show a person your sequence and a sequence generated via an actual random number generator. Minimize the average probability that that person correctly guesses which sequence was generated by a human, across all possible real random sequences." I guess most other people would read it that way, even it is not formally correct from a statistical perspective. And I believe it gets at what they're trying to measure.