Saturate your body with sensors. A bluetooth connection for every hair in your ears, nose and butt. Wifi for each of your liver's lobes, flow sensor in your intestines, strain gauges glued to your nails, ears and eyelids, a nanomagnetometer for every neuron, tile the inner wall of your small intestine with enzyme chips, etc, etc. If enough people follows that trend, soon the data flow is going to surpass any available computing power to process it. An being fashionable in the process, the real concern of most gadget users.