According to Dunning-Kruger effect, and expert should consider his accomplishments trivial in hindsight. All of the graphs in that paper still showed a positiv

According to Dunning-Kruger effect, and expert should consider his accomplishments trivial in hindsight. All of the graphs in that paper still showed a positive correlation between actual and self-perceived skill. Self-perception was just compressed into the range of around 50% to around 75%, instead of the full 0% to 100% of their measurement scale.