John Collison, co-founder and president of Stripe Inc., poses for a photograph following a Bloomberg Television interview at the Web Summit in Dublin, Ireland, on Wednesday, Nov. 4, 2015. The summit, which started five years ago with 400 technology entrepreneurs, will draw more than 2,000 startups, 1,000 investors and 650 speakers to the three-day conference this year, organizers say. Photographer: Aidan Crawley/Bloomberg via Getty Images
