The document discusses various cognitive biases and errors that can impact entrepreneur's thinking, such as counterfactual thinking which leads entrepreneurs to experience more regret over missed opportunities. It also examines how affect infusion causes entrepreneur's moods and feelings to more strongly influence their judgments and decisions given they engage in more careful thought than others. Finally, it analyzes attributional style and the self-serving bias that causes entrepreneurs to attribute successes more to internal factors and failures more to external factors.