> In fact right now I can think of a single person who's a world class researcher _and_ a prolific blogger; Terrence Tao, but he's a mathematician. > My point

> In fact right now I can think of a single person who's a world class researcher _and_ a prolific blogger; Terrence Tao, but he's a mathematician. > My point is, you can't judge who's the expert based on the quality of the science produced because you don't have the expertise for that. But you do have the expertise / knowledge / chuzpah to say that Mr Tao is a world class researcher? Sorta contradicktory, no?