Have you ever noticed how incompetent people are often incredibly confident while the highly-skilled underestimate their ability to perform. That's called the Dunning-Kruger Effect named for Justin Kruger and David Dunning of Cornell University who published their study of said cognitive bias in 1999.
You see this on reality TV all the time. And you see it at the poker table often enough. I dont have some brilliant tie-in, just happy to see someone went out of their way to prove it exists.