Amazon received critical headlines this year when reports questioned the “Just Walk Out” technology installed at many of its physical grocery stores.The AI-powered system enables customers at many of its Amazon Fresh and Amazon Go shops to simply pick their items, and then leave.The AI uses lots of sensors to work out what you have chosen. You then get automatically billed.However, back in April it was widely reported that rather than solely using AI, Just Walk Out needed around 1,000 workers in...