Derrick Jensen is an author, speaker and environmentalist. His most recent book is, "Bright Green Lies: How the Environmental Movement Lost Its Way and What We Can Do About It."

Doron Zeilberger is a mathematician at Rutger's University, and is well known for his work in combinatorics and his strong opinions about the mathematical establishment.

Robert McChesney is a professor in the Department of Communication at University of Illinois, and is the author of several books, including "Dollarocracy" and "The Problem of the Media."

Richard Neupert is a professor in the department of Theatre and Film Studies at the University of Georgia, and is the author of several books, including "French Animation History" and "A History of the French New Wave."

Alan Robock is a climatologist at Rutgers University and a member of the UN Intergovernmental Panel on Climate Change. His research interests include geoengineering and the climate effects of nuclear winter.

Robin Hanson is an economist at George Mason University, and the author of multiple books, including "The Age of Em" and "The Elephant in the Brain." His blog is called "Overcoming Bias."

Pauline Boss is a professor emeritus at University of Minnesota, a pioneer of the field of ambiguous loss, and the author of numerous books, the most recent of which is called "The Myth of Closure: Ambiguous Loss in a Time of Pandemic."

Rolf Potts is the author of "Vagabonding: An Uncommon Guide to the Art of Long-Term World Travel." His podcast is called "Deviate with Rolf Potts."

Angelo Pentaris is a drummer, disability advocate and motivational speaker.

Robert Gross is a historian at the University of Connecticut and the author of "The Transcendentalists and Their World."