Michelle Wu, the Mayor of Boston, passionately argues for free public transit, emphasizing its role in boosting economic mobility and racial equity. Brian Taylor, a transportation scholar from UCLA, delves into the complexities of public transit systems and how they interact with private vehicle use. The discussion highlights successful case studies like Kansas City's fare-free initiative and debunks myths about traffic congestion. Together, they explore the environmental benefits of free transit and the social implications for low-income communities.