On August 29th, as Hurricane Dorian tracked towards America's east coast, Elon Musk, the boss of Tesla, an electric-car maker, announced that some of his customers in the storm's path would find that their cars had suddenly developed the ability to drive farther on a single battery charge. Like many modern vehicles, Mr Musk's products are best thought of as internet-connected computers on wheels.
Mr Musk's computerised cars are just one example of a much broader trend. As computers and connectivity become cheaper, it makes sense to bake them into more and more things that are not, in themselves, computers—from nappies and coffee machines to cows and factory robots—creating an "internet of things", or iot.
It is a slow revolution [that has been gathering pace for years], as computers have found their way into cars, telephones and televisions. But the transformation is about to go into overdrive. One forecast is that by 2035 the world will have a trillion connected computers, built into everything from food packaging to bridges and clothes. Such a world will bring many benefits.
