By Chris Hayward The City of London’s AI Innovation Challenge will harness the power of technology to prevent and track fraud, says Chris Hayward AI chip producer Nvidia is vying with Microsoft and Apple for the title of world’s most valuable company. History teaches us that those who become the world’s most valuable company, be they Standard Oil, IBM, Apple, or potentially Nvidia, share one critical factor: they innovate. How long Nvidia will compete for the top spot is uncertain – Standard Oil’s reign at the top lasted 29 years before it was broken up. But what is clear is that the product b…