Listen now (26 min) | Lia Thomas is a transgender woman who has, in one year, become the star athlete of the women’s swim team at The University of Pennsylvania. When she competed on the men’s team, she was seeded no. 462 in the NCAA. Now, she’s seeded No. 1 and expected to beat Olympic gold medalist Katy Ledecky, widely considered one of the greatest female swimmers of all time, later this month at the NCAA championship.