John Danaher is a Brazilian jiu-jitsu and mixed martial arts instructor and coach from New Zealand. He is widely regarded as one of the best instructors and coaches in these sports. Wikipedia
Annaka Harris (@annakaharris) is an author, editor and consultant for science writers, specializing in neuroscience, meditation, mind, consciousness andphysics.
Daniel Negreanu (@realkidpoker) is a professional poker player. He has won six World Series of Poker (WSOP) bracelets and two World Poker Tour (WPT) championship titles.
Rana el Kaliouby (@kaliouby) is a computer scientist and entrepreneur in the field of emotion recognition research, human-centric AI and technology development. She is the founder of Affectiva and deputy CEO of Smart Eye.
Christopher Capozzola is associate professor of history at MIT. He teaches courses in political and legal history, war and the military, and the history of international migration.