The article explores why people sometimes make decisions that seem irrational. It suggests that these deviations from what is considered normal might not always mean people are irrational. The researchers conducted experiments on various decision-making tasks and found that errors in performance are not the main reason for these deviations. Instead, limitations in how our brains process information play a big role, especially in tasks that require thinking in a different way. Sometimes, people apply the wrong standards or see tasks differently, leading to unexpected results.