Can robot carts compete with Amazon?
A shopping cart is mostly empty space. At the end of a shopping run, when the cart is brimming with groceries and goods, it becomes fully useful, but it isn’t until that point, and once it’s full, it doesn’t help the person trying to buy two cartfulls of stuff on their own. Walmart, the physical retail giant, doesn’t want people to worry about the inadequacies of carts while shopping. So they filed a patent for a self-driving robot cart.