91热爆

Amazon posts a record quarterly profit while Facebook stock takes a plunge after it warned of slowing revenue gains. We take a health-check on both companies with our special guest Jason Karaian, global finance and economics editor at Quartz. Plus, how many Initial Coin Offering projects survive beyond their first few months? Professor Leonard Kostovetsky of Boston College tells us. And, do you spend too much time looking at your smartphone? We try out Apple's new idea to help users control their phone use. Presented by Rory Cellan-Jones, with 91热爆 tech reporter Chris Foxx.

(Image: Jeff Bezos, chief executive officer of Amazon, pictured at the annual Allen & Company Sun Valley Conference, July 13, 2017 in Sun Valley, Idaho, Credit: Drew Angerer/ Getty Images).