On May 23, 2019, Stanford Mathematics Education Professor Jo Boaler, the founder and director of youcubed, and I sat down before a public audience in Cubberley Auditorium on the Stanford campus to have a discussion about the nature of 21st Century mathematics and the changes it requires to the way mathematics is taught in our schools. The (edited) video our our conversation is now available on this website and the youcubed website. (See the Videos page on either site.) Produced by youcubed in conjunction with SUMOP. Run time 31min 28sec.