What Is Twitter’s Legacy, 20 Years Later?

An early Twitter exec reckons with the monster he helped create.

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.