DON’T KISS THE CHECKOUT GIRLS GOODBYE: Amazon Delays Opening of Cashierless Store to Work Out Kinks.

The store in Amazon’s hometown of Seattle uses cameras, sensors and algorithms to watch customers and track what they pick up, according to the people familiar with the matter. But Amazon has run into problems tracking more than about 20 people in the store at one time, as well as the difficulty of keeping tabs on an item if it has been moved from its specific spot on the shelf, according to the people familiar with the matter.

For now, the technology functions flawlessly only if there are a small number of customers present, or when their movements are slow, the people familiar with the matter said. The store will continue to need employees to help ensure the technology is accurately tracking purchases for the near future.

Some days you get the feeling we might just get flying cars before we get automated shopping or driving.

(Classical reference in the headline.)