I'd be curious to learn the analytics behind Macy's targeting of me. I do have a Macy's credit card, but don't use it all that often and pay it off within a month or two of the purchase. I'm thinking the last time I used it was probably 6 to 12 months ago. Yet I receive so many promotional discounts from Macy's. I don't get it.
Recent breakthroughs by Realeyes allows for tracking of a person's emotional state based on a number of metrics related to their facial expression, all at a lower cost than existing kinesiology systems.