The pronounced positive confidence bias that is a characteristic and apparently irrational trait of human decision-making has been replicated and dissected using an artificial intelligence (AI) model. The unnerving result, published in Nature Communications by a RIKEN-led team, reveals that our inflated sense of confidence might stem from subtle observational cues.The pronounced positive confidence bias that is a characteristic and apparently irrational trait of human decision-making has been replicated and dissected using an artificial intelligence (AI) model. The unnerving result, published in Nature Communications by a RIKEN-led team, reveals that our inflated sense of confidence might stem from subtle observational cues.Machine learning & AI[#item_full_content]