Where did the idea for Facebook come from? How has the site evolved? And how has it changed the world? In this episode, 20 years after the creation of the social media site, Don speaks to Steven Levy, WIRED’s editor at large.

Steven had access to Mark Zuckerberg and Sheryl Sandberg over three years for his book 'Facebook: The Inside Story'. His work chronicling the digital revolution can be found at WIRED.com.

Produced by Sophie Gee. Edited by Aidan Lonergan. Senior Producer was Charlotte Long.

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