SAN FRANCISCO, CA - OCTOBER 09: Twitter Co-Founder and Chairman and Square CEO Jack Dorsey speaks onstage during "From 7 Dwarves to 140 Characters" at the Vanity Fair New Establishment Summit at Yerba Buena Center for the Arts on October 9, 2014 in San Francisco, California. (Photo by Kimberly White/Getty Images for Vanity Fair)
