We like to think that good financial decisions come down to discipline and basic math. But the psychology of money turns out to be deeply complicated. Researcher John Dinsmore explains the hidden mental biases that shape how we think about spending, borrowing, and the future. We explore how these forces can steer us toward costly mistakes — and how to guard against them. Then, on Your Questions Answered, researcher Bobby Parmar returns to consider the upsides of embracing uncertainty.