César A. Hidalgo leads the Collective Learning group at the MIT Media Lab and is an associate professor of media arts and sciences at MIT.

Ashley Nunes is a researcher, consultant and commentator specializing in transportation safety, regulatory policy and workforce productivity.

John Park is director of the Korea Project, an adjunct lecturer and a faculty affiliate with the Project on Managing the Atom at the Harvard Kennedy School’s Belfer Center.

Kristala L. Jones Prather is Arthur D. Little Professor of Chemical Engineering at the Massachusetts Institute of Technology.

Raj Chetty is the William A. Ackman Professor of Economics at Harvard University and director of Opportunity Insights.

George J. Borjas is the Robert W. Scrivner Professor of Economics and Social Policy at the Harvard Kennedy School.

Tiya Miles is a professor of history at Harvard University. Her new book, “All That She Carried: The Journey of Ashley’s Sack, a Black Family Keepsake,” traces a gift from an enslaved mother to her daughter as it passed through the generations.

Rey Junco is the senior director of innovation at Healogix, a consulting agency that works with pharmaceutical and biotechnology companies to market their products.