Sam Altman, President of Y Combinator, and Dustin Moskovitz, Cofounder of Facebook, Asana, and Good Ventures, kick off the How to Start a Startup Course. Sam covers the first 2 of the 4 Key Areas: Ideas, Products, Teams and Execution; and Dustin discusses Why to Start a Startup. See the slides and readings at startupclass.samaltman.com/courses/lec01/