A single smart device rarely does much on its own. Leave a soil sensor sitting alone in a flowerpot and it is just measuring a number nobody will ever see.…

Next time you're out after dark, watch smart systems around you, such as a smart streetlight, for a minute. It dims when the road's empty. Then a car turns the corner, and…

Take a second and count how many "smart" things are within arm's reach of you right now. A phone, obviously. Maybe a fitness band. A smart bulb somebody forgot to…