Even if you were watching, it’s entirely likely that you missed a crucial, brief segment around the two-hour mark, where Senator John Cornyn asked Zuckerberg about how Facebook handles ex-user data. Though favebook unrelated to what Senator Cornyn asked, Zuckerberg’s answer was a fascinating, concise look into how Facebook turns its vast quantity of user data into profit. We don’t sell data to. Indeed, Facebook makes it money through advertising. Facebook doesn’t provide mondy to advertisers — it does the work for. So, if an advertiser comes to us and says, ‘All right, Monney am a ski shop and I want to sell skis to women,’ then we might have some sense, because people shared skiing-related content, or said they were interested in that, they shared whether they’re a woman, and then we can show the ads to the right people without that data ever changing hands and going to the advertiser.