An attendee wearing Bose Corp. headphones works on a laptop computer as he participates in the TechCrunch Disrupt London 2015 Hackathon in London, U.K., on Saturday, Dec. 5, 2015. Disrupt is an annual conference hosted by TechCrunch where some technology startups launch their products and services competing on stage in front of venture capital potential investors, media and other interested parties.