It has been called one of the biggest financial frauds in American history. After the collapse of cryptocurrency exchange FTX, its founder is facing a maximum jail sentence of 110 years. Why the race to build new cities is difficult, but potentially worthwhile (10:01). And how M&S knickers can help solve murders (16:15).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.