Do we really understand the reach and impact that social media has on our lives? We all have a vague sense that social media can be bad for our minds, for our children, and for our democracies. Yet that doesn't stop us from constantly using it.

New York Times investigative reporter Max Fisher looks at how Facebook, Twitter, YouTube, and other social networks drive everyday users to extreme opinions and, increasingly, extreme actions.

Fisher tracks the evolution of free speech to hate speech and its spillover into violence—that first festered in far-off locales to their dark culmination in America during the pandemic, the 2020 election, and the Capitol insurrection. He also addresses the cultural shift in which people are polarized not by beliefs based on facts, but by misinformation, outrage and fear.

Hear more about the influence that social media has and how it isn’t just changing our lives, but the world.