Pete and Sparky have a chat with Peter Gray, research professor of psychology at Boston College and author of the book "Free to Learn: Why Unleashing the Instinct to Play Will Make Our Children Happier, More Self-Reliant, and Better Students for Life," about the importance of unstructured, adult-free activity in children's social and intellectual development.

You can learn more about Professor Gray's books, and read his blog posts, at https://www.psychologytoday.com/us/contributors/peter-gray-phd

This episode was edited by Dan Thorn (@danieljtvthorn) of Pink Noise Studios in Somerville, MA, and it features theme music by Danny Bradley. If you liked the podcast, please consider supporting our investigators on our Patreon.