But that's not what he's doing. He isn't concluding that everyone runs slower than the record (which is almost a tautology), he's trying to conclude things abou

But that's not what he's doing. He isn't concluding that everyone runs slower than the record (which is almost a tautology), he's trying to conclude things about the average running speed of people. That's extremely deceptive, because you can't actually conclude a damn thing about the average based on the minimum.