Manufacturers of eg edible goods are obsessive about understanding what we like best. Today’s invention is a box for chocolates or biscuits which allows communication about our preferences.
It consists of a (grey) annular box, like a slide carousel, in which eg biscuits are arranged on their sides and visible through a transparent, annular lid.
The lid must be rotated so that a slot in it corresponds with the biscuit of one’s choice. As this happens, a small (red) pen leaves a line on a roll of paper wrapped around the outer face of the carousel. When the pen stops, it leaves a small blot.
Microscopic analysis later of the blots and the line’s local ink depth allows interpretation of the order in which biscuits were visited.
Consumers could be offered a small incentive to mail the paper sheet back to the manufacturer to aid product development.