The problem though is that collecting ever more data becomes ever more expensive as they try to track things like where we walk in the supermarket or what items we look at and for how long. Nucleus vision wants to change this with their new tracking blockchain protocol, which connects with IoT devices, to track your buying habits better. They are going to be able to do this through their contactless identification system, which uses a telephone to track when a customer enters and leaves a store. From their they can embed their protocol in other IoT tracking devices to gain a richer understanding of a customer’s buying habits.