In a previous post, we considered three of seven "irrational" habits of highly rational people. Here we consider the remaining four, as well as some suggestions for distinguishing the genuinely ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

When my students grow too dependent on their calculators, I ask them to find a number that, when multiplied by itself, gives them 2. Students quickly see that since 1² = 1 and 2² = 4, the answer has ...

Key points If someone made perfectly accurate judgments and sound decisions, would we recognize it? The science and philosophy of judgment and decision-making suggests that the answer is often “no.” ...