Powerful A.I. By 2026? + Uber's C.E.O. on the Robotaxi Future + Casey's TikTok Test

This week, the A.I. company Anthropic has Silicon Valley rethinking the timeline for artificial general intelligence. In addition to releasing a new safety policy, the company’s chief executive, Dario Amodei, laid out a vision of how A.I. could help cure cancer, mental illness and mitigate climate change in the near future. We consider his most surprising claims and what this means for the acceleration of the technology. Then, the Uber chief executive, Dara Khosrowshahi, joins us in the studio to discuss his company’s new partnership with Waymo, the autonomous vehicle company, and the future of that industry. And finally, leaked court documents reveal exactly how many TikTok videos you need to watch to get hooked on the app. So, Casey puts the number to the test. Guest:Dara Khosrowshahi, chief executive of UberAdditional Reading:Dario Amodei’s Essay “Machines of Loving Grace”TikTok Executives Know About App’s Effect on Teens, Lawsuit Documents AllegeWe want to hear from you. Email us at hardfork@nytimes.com. Find “Hard Fork” on YouTube and TikTok. Unlock full access to New York Times podcasts and explore everything from politics to pop culture. Subscribe today at nytimes.com/podcasts or on Apple Podcasts and Spotify.