Earlier quoted context omitted.
This is possible in retail, or will soon be. Canada's major grocery chain has migrated entirely to LCD price tagging that can receive OTA updates. There are now no paper price labels in the store. The same chains have extensive camera coverage on the entrance / exits of the store. So pricing can be an optimization function as fine grained as persons currently in the store . Cameras on the aisles as well can enforce t…
The electronic shel labels use e-ink. Their refresh time is around 30 seconds. What happens if two shoppers are looking at the same product?
> Cameras on the aisles as well can enforce that individual tags update while nobody is within 15 feet, etc.