A fast food restaurant could adjust their pricing based not on time of day, but on which customers are looking at the board. It could be based on individual un

A fast food restaurant could adjust their pricing based not on time of day, but on which customers are looking at the board. It could be based on individual unique identity (from facerec, and the umpteen ways a smartphone sells out the user), and/or on factors they can pick up from cameras alone (like gender, ethnicity, age, style of dress, class). From there, you can learn price tolerances, including how price affects repeat visits. Hook it into promotions, loyalty programs, etc. For extra dystopia, if there's any demographic you'd rather not have in a particular store, you can discourage them with pricing. If someone gets better pricing than you, it must be an algorithmic oddity, or they they got better promo rewards from retweeting a post, or their (upcoming) AR glasses outward-facing ads display got better impressions, or something. "Sir, this is a Wendy's... halt, and submit to AI socio-biometric scanning, citizen!"