Whether it was about foreign policy, the economy, or the best route to the grocery store, chances are you have changed your mind about something. What happens in your brain when you do, and what does that teach us about how we can change someone else’s mind on a political issue? Mónica talks with David McRaney, a leading voice on the science of persuasion, about how minds change — or don’t! — and why. Then Mónica and April open up about some times they’ve changed their minds — and challenge each other on how all this stuff does or doesn't apply when we encounter people with the darkest ideas.