Martin Rees is Astronomer Royal, former President of the Royal Society, Fellow (and former Master) of Trinity College, Cambridge, and Emeritus Professor of Cosmology and Astrophysics at the University of Cambridge. He sits as a member of the UK House of Lords.

Newt Gingrich is a former Speaker of the House and 2012 presidential candidate. He is a Fox News contributor and the author of 35 books, including New York Times bestsellers, most recently the #1 New York Times bestseller Understanding Trump.

Po Bronson is the author of seven books, including What Should I Do with My Life?, a #1 New York Times bestseller with more than ten months on the list. Po has been on Oprah, on every national morning show, and on the cover of five magazines, including Wired and Fast Company. He is Strategy Director at IndieBio. He lives in San Francisco with his wife and two children.