The first machine age was about mechanical machines. We now live in a time of thinking machines. Erik Brynjolfsson joins Vasant Dhar in episode 18 of Brave New World to talk about the impact of AI on productivity and inequality -- and to explain why he remains optimistic about the prospects for humans in the AI era.   Useful resources: 1. The Second Machine Age -- Erik Brynjolfsson and Andrew McAfee. 2. Erik Brynjolfsson's website, SSRN page and Google Scholar page. 3. The coming productivity boom --  Erik Brynjolfsson and Georgios Petropoulos 4. Artificial Intelligence and the Modern Productivity Paradox -- Erik Brynjolfsson, Daniel Rock & Chad Syverson. 5. The Productivity J-Curve: How Intangibles Complement General Purpose Technologies --  Erik Brynjolfsson, Daniel Rock and Chad Syverson. 6. How Should We Measure the Digital Economy? -- Erik Brynjolfsson and Avinash Collis. 7. GDP-B: Accounting for the Value of New and Free Goods in the Digital Economy -- Erik Brynjolfsson, Avinash Collis, W. Erwin Diewert, Felix Eggers & Kevin J. Fox. 8. Digital Capital and Superstar Firms -- Prasanna Tambe, Lorin Hitt, Daniel Rock & Erik Brynjolfsson. 9. Artificial Intelligence and the Future of Work -- Congressional Testimony of Erik Brynjolfsson (September 24, 2019). 10. Do Digital Platforms Reduce Moral Hazard? The Case of Uber and Taxis -- Meng Liu, Erik Brynjolfsson and Jason Dowlatabadi. 11. Does Machine Translation Affect International Trade? -- Erik Brynjolfsson, Xiang Hui & Meng Liu. 12. The Economics of Superstars -- Sherwin Rosen. 13. General Purpose Technologies "Engines of Growth?" -- Timothy F. Bresnahan & Manuel Trajtenberg. 14. Deaths of Despair and the Future of Capitalism -- Anne Case and Angus Deaton. 15. Economic Possibilities for Our Grandchildren -- John Maynard Keynes. 16. Understanding QE in the New World -- Episode 10 of Brave New World (w Paul Sheard). 17. The Nature of Intelligence -- Episode 7 of Brave New World (w Yann LeCun). 18. Uplift the Unremarkables -- Episode 2 of Brave New World (w Scott Galloway).