> Employees have tried to fool the technology. One day, three enterprising Amazonians donned bright yellow Pikachu costumes and cruised around grabbing sandwiches, drinks and snacks. The algorithms nailed it, according to a person familiar with the situation, correctly identifying the employees and charging their Amazon accounts, even though they were obscured behind yellow polyester.

Okay, so 3 employees tested it? This tech is going to be "tested" in the real world by tens or hundreds of thousands of people in the first few months/year. Something tells me things will go far from smoothly.

I've only had an experience with a "semi-cashierless" store, sort of speak, where the cashier would scan your stuff, and then it would give you a ticket, and you'd go to pay with it at a not-so-intuitive machine. Oh, and you also had to scan it again before you left the area at the designated exit-gate.

Let me tell you, it felt like both a more frustrating experience than just paying the cashier and it took longer time. The only thing this did is save the cashier 15 seconds per person, while the store paid for a dozen of those machines who knows what.

So we'll see if this is indeed a better experience, or it's just meant to save Amazon money on not having to pay for cashiers, while giving customers a more frustrating experience and making them spend more time in the store to register every item (for the same number of purchased items).

Apple's Face ID can't even identify your own face 100% of the time. How is Amazon's tech going to identify (from a distance) millions of people that pass through the store and every item they got with 100% accuracy??