Former CEO of Zappos; Co-Founder of LinkExchange
Co-Founder of Initialized Capital & Co-Founder of Reddit; Entrepreneur, Investor, Activist & Bestselling Author
World-Renowned Futurist & Theoretical Physicist
Is AI a species-level threat to humanity? | Big Think
Founder & CEO of Cheddar; Former President and COO of Buzzfeed; Former CEO of Daily Mail.com in North America
Co-Creator of Twitter; Author of "140 Characters"