In September of 2019, I sat down with Mark Sargent at the Gather Festival in Stockholm, Sweden to have a conversation. I wanted to try and understand the reasoning behind his beliefs, and non-beliefs — the reasoning that lead him to believe the Earth is flat.

Moira Dillon studies how “the physical world in which we live shapes the abstract world in which we think,” and in this episode we travel to her Lab for the Developing Mind at NYU to sit down and ask her a zillion questions about how the brain creates the reality we interact with, and how we attempt to communicate that reality to others through language, art, geometry, and mathematics.