Amazon's attempt to remake shopping as we know it takes a major step forward with the opening of AmazonGo convenience store to the public. The store uses advanced technology to let shoppers walk in, take what they want off the shelf, then leave — without waiting in line for a cashier. The 1,800-square foot mini-market is modeled on a convenience store, offering takeaway food like salads and sandwiches, meal kits for home preparation and an array of beverages. Shoppers gain entry to the Amazon Go store using a smartphone app. Then a mix of cameras, sensors and artifical intelligence keeps track of what they take off the shelves. When shoppers walk out with their purchases, the system automatically charges them.

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