Enlarge / Amazon CEO Jeff Bezos testifies (remotely) before the House Judiciary Subcommittee on Antitrust, Commercial and Administrative Law hearing on "Online Platforms and Market Power" in the Rayburn House office Building on Capitol Hill in Washington, DC on July 29, 2020. (credit: Graeme Jennings - Pool | AFP | Getty Images) A bevy of tech's biggest titans—Alphabet CEO Sundar Pichai, Amazon CEO Jeff Bezos, Apple CEO Tim Cook, and Facebook CEO Mark Zuckerberg—all took to their remote offices Wednesday to dial into a hotly anticipated Congressional hearing, the latest part of an in-depth investigation into their firms' behavior that began more than a year ago. The almost six-hour hearing was nominally convened to talk about antitrust enforcement, and it had two core questions at its heart.