The dearth of fixed-line infrastructure that allowed the continent to leapfrog into the mobile-phone age now holds it back. We ask how to ensure the even spread of AI’s dividends. A stinking Seine has delayed the Olympic triathlon, but the river could one day help clean up Paris (7:09). And how “The Blair Witch Project” changed horror films (14:33). Listen to what matters most, from global politics and business to science and technology—Subscribe to Economist Podcasts+For more information about how to access Economist Podcasts+, please visit our FAQs page or watch our video explaining how to link your account.  Hosted on Acast. See acast.com/privacy for more information.