I'm very protective of my privacy. I hate giving companies information so they can advertise to me.
A new development in eye-tracking software could mean I'll have little choice in the matter.
A single camera can now track when I'm looking at an ad or what I've been looking at in a shop and change the ad accordingly.
It won't be in use for a few years, but I'm not looking forward to having to shop in sunglasses to avoid them.