there's a big space between leader and trivial. it's entirely possible to point out the top leader in your field is wrong on ten things over a career, without becoming the top leader yourself.
On speculative things or trivial things, sure! On substantive matters (recall: the choice of words is “overturned”), in empirical realms or theory (physics, CS) or math, it’s rather doubtful. Anonymous, self-declared geniuses aren’t to be taken at face value.
