High, but not particularly rare. IF you see a movie, there are probably several people >130 in the audience with you. When you filter by education and other factors, it goes up quickly. Depending on your line of work, a majority of your coworkers might be over 130.
The road to hell is paved with smart people who think they can become experts in something just by reading some blog posts and thinking about the subject for a few hours. As one example, see successful poker players who become amateur economists, geneticists and virologists.