Is the author an acknowledged genius? There seems to be a gap between people who are solidly competent in a domain and perhaps somewhat more creative and insig

Is the author an acknowledged genius? There seems to be a gap between people who are solidly competent in a domain and perhaps somewhat more creative and insightful than average, and extreme gamechangers who completely transform an existing domain and/or invent a completely new one. Perhaps I'm wrong, but the author seems more of the former than the latter. That's not a bad goal in itself, but I'm always wary of people who seem to be applying the latter label to themselves.