High-stakes poker is decision-making distilled to its essence. As such, if you know what you’re seeing, it’s a masterclass in the powers and perils of human reasoning.Confirmation Bias: The tendency to overvalue evidence that confirms one’s existing beliefs and undervalue evidence that contradicts those beliefsEvaluate your thought process. Ask: Am I looking for signs that prove what I want to believe? Am I dismissing signs that disprove what I want to believe?Search for contrary evidence tha...