What Is Twitter’s Legacy, 20 Years Later?

What is Twitter’s legacy? In this episode of Galaxy Brain, Charlie Warzel traces how Twitter, now called X, evolved from a status-update tool to one of the most culturally and politically influential—and contentious—platforms of the modern internet. Charlie is joined by early Twitter executive Jason Goldman. They explore how Twitter’s core features—many invented by users—reshaped media and politics while also enabling new forms of harassment, misinformation, and attention hijacking. Goldman reflects candidly on the company’s key inflection points—from early free-speech-maximalist decisions and underinvestment in trust and safety to Twitter’s role in events like the Arab Spring and the election of Donald Trump. The discussion culminates in Twitter’s Elon Musk era, where its logic of attention has been weaponized more explicitly. The episode reckons with what Goldman and others ultimately built: a tool with outsize cultural influence that’s broken brains and amplified some of society’s worst impulses. Get more from your favorite Atlantic voices when you subscribe. You’ll enjoy unlimited access to Pulitzer-winning journalism, from clear-eyed analysis and insight on breaking news to fascinating explorations of our world. Atlantic subscribers also get access to exclusive subscriber audio in Apple Podcasts. Subscribe today at TheAtlantic.com/Listener. Learn more about your ad choices. Visit megaphone.fm/adchoices