Wall Street runs on optimism. History shows that may be risky. | BBC Global

Andrew Ross Sorkin – author of the new book 1929 – speaks with Katty Kay about why America’s economy runs on optimism and what happens when it goes too far. They explore the lessons of 1929, why speculation and innovation are inseparable and how the same forces that were present in the run-up to the Great Depression may also be seen in today’s AI boom. Subscribe to BBC Global: https://www.youtube.com/c/bbc_global?sub_confirmation=1 For the latest news, analysis and features, visit: www.bbc.com #bbc #economy #AI