Zain
Zain holds a PhD in History from the University of Pennsylvania and a JD from Yale Law School. She has held academic positions at Berkeley, Harvard, and the University of Pennsylvania, and is a barred attorney in Pennsylvania.
Walker
Walker earned his undergraduate degree in applied math from Columbia University and later finished a master's degree in statistics from Duke University. He now works for the New York Yankees as a quantitative analyst in their front office.
Sam
Sam holds a BS in Physics (Cornell) and a PhD in Physics (Harvard). He's now a postdoctoral researcher at the University of Pennsylvania, studying physical systems and machine learning applications.