The “invisible army” behind Amazon’s robotaxi revolution

In a new follow-up to his bestselling book Range, author David Epstein reveals his new contrarian take: The best thing for innovation is actually constraints. Epstein talks with host Jeff Berman about the fascinating research he did to prove out this idea, with examples from Silicon Valley, Pixar and more.  Subscribe to the Masters of Scale weekly newsletter: https://mastersofscale.com/subscribe See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

When Duolingo CEO Luis von Ahn sent an internal memo about AI last year, he didn't expect it to go viral — or to ignite a firestorm about the future of work. Now he joins Rapid Response to unpack what he got right, what he got wrong, and what the backlash taught him about the real limitations of AI. Von Ahn also reveals why he's made a deliberate pivot in 2026: chasing users, not revenue — and what that bet says about how big Duolingo can get before ads become inevitable. It's a candid reckoning with hype, growth, and the surprisingly complicated promise of technology in education. Visit the Rapid Response website here: https://www.rapidresponseshow.com/ See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Todd Graves built Raising Cane’s Chicken Fingers into a nearly 1,000 restaurant empire worth billions. It’s well known for both its deliciously simple menu and its refreshingly friendly staff. The founder and CEO talks with host Jeff Berman about how he perfected the recipe for success, why he thinks restaurants should be wary of private equity, and much more. Subscribe to the Masters of Scale weekly newsletter: https://mastersofscale.com/subscribe See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

When markets drop and chaos hits, Mellody Hobson is determined to be brave. The co-CEO of Ariel Investments and former chair of Starbucks and DreamWorks joins Rapid Response to make the case that volatility isn't something to survive but to exploit. She shares the financial lessons she lives by, including a surprising admonition against making choices based on money, and why she sees women's sports as the investment opportunity of a generation. Plus, why math has no opinion, and how that changes everything. Visit the Rapid Response website here: https://www.rapidresponseshow.com/ See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

As The Devil Wears Prada 2 hits theaters this weekend, Rapid Response explores the enduring business lessons inside the now 20-year-old original. Host Bob Safian is joined by two insiders who built their careers in the world the film depicts: Janice Min, CEO of The Ankler, and Sarah Ball, editor-in-chief of WSJ Magazine. Together they track how publishing, fashion and power have all shifted over the past two decades — and dig into what the original got right about ambition, success, and the bosses who shape us. Plus, shocking personal stories from the magazine industry, and why Miranda Priestly's management style wouldn't survive a week in 2026. Visit the Rapid Response website here: https://www.rapidresponseshow.com/ See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.