Artificial Intelligence and Digital Twins

Have you ever wondered why supermarkets don't offer augmented reality guides to the locations of their products? Instead of criss-crossing the store, hunting for the tomato juice or the paprika, why can't you upload your shopping list into something like Google Maps and have it guide you on the most efficient route around the aisles? It's not because supermarket owners are afraid you won't make impulse purchases. It's because that sort of navigation (or wayfinder) technology is hard. In 2015, Emil Alon sold a company to Facebook for $60m.