Most people here are assuming there are RFID tags on every product. But I think they are watching the shelves and visually identifying when a product leaves, w

Most people here are assuming there are RFID tags on every product. But I think they are watching the shelves and visually identifying when a product leaves, what it was and who took it. And if they put it back on a different shelf, a different camera sees that and it is removed from the person's "shopping cart". They are using their internal employees to train the AI or AI's (maybe one per section of shelf). Imagine a Kellogg's employee assigned to watch each of their cereal boxes and make a list when someone takes one. That's how I think they are using AI here. Hundreds of them in the store.