In a darkened room, a woman lies watched by an infra-red camera as she sleeps. It monitors her breathing, her movements, the flicker of her eyelids. Some hours later it stings her with a painful electric shock. She wakes, tumbles out of bed and into the restroom, whereupon a chip installed in her toothbrush tracks her arm movements. She’s photographed, silently, every thirty seconds. As she sets off in the morning her location is logged and data is streamed on the steps she takes. Her pulse and calorie count are recorded and sent to unseen observers. She has a dog at her side. The dog’s data is logged as well.

Such a tableau would be the envy of any futuristic dictatorship. In fact, the devices outlined above are all available on the consumer market now, for voluntary use.