I recall Rotter's name. I don't know, but perhaps Rotter was a "front-runner" ala SAC Capital. (??) If that's the case, can't logically compare him to anything.
But just because "one guy" made it big with that/any kind of thing doesn't mean it's the "norm" and that ET traders should be able to accomplish the same.
"Anything" for lots/the majority of people to be successful at... needs to be simple and easy. Trading is NOT that at all. (If it were, all traders would be rich... and we all know the status of that!)