The economic model of social media is organized around personal data surveillance. And that has consequences. These systems that claim to capture our reality are actually shaping our reality and our understanding of the world. Ron Deibert presents the second CBC Massey lecture with a focus on surveillance capitalism. Social media are not only used to sell products, but also to push ideologies. Due to copyright reasons there is no podcast or stream for these lectures on the Big Ideas website. Please head to the CBC Massey Lecture website.