For an effect of human psychology to be real, it cannot be rigorously replicated using random noise. If the human brain was predisposed to choose heads when a coin is flipped, you could compare this to random predictions (heads or tails) made by a computer and see the bias. A human would call more heads than the computer would because the computer is making random bets whereas the human is biased toward heads. With the Dunning-Kruger effect, this is not the case. Random data actually mimics the effect really well.
Well, like everything, it's capitalisms fault. Oligarchs sway the government away from higher taxes (on them) and therefore less spent on social programs and community projects like school, higher education, community spaces, art, etc.
This leads to an increase in stupid sociopaths. Not necessarily their fault entirely. But their actions in life make the problems worse, so it's a feedback loop.
One day I had a memory that there was some popular band back in high school and I wanted to find them again and have a nostalgia listen. I had no idea until years (decades) later
He is well qualified.