It's impossible to empirically examine whether or not humility and reverse-Dunning-Krueger is important for trading acumen. On the other hand, it's demonstrable

It's impossible to empirically examine whether or not humility and reverse-Dunning-Krueger is important for trading acumen. On the other hand, it's demonstrable that domain knowledge and business acumen, or mathematically modeled market signals and statistical insight can result in reliably superlative returns.