Silicon Valley siphons our data like oil. But the deepest drilling has just begun

The Guardian 

Customers in the UK will soon find out. Recent reports suggest that three of the country's largest supermarket chains are rolling out surge-pricing in select stores. This means that prices will rise and fall over the course of the day in response to demand. Buying lunch at lunchtime will be like ordering an Uber at rush hour. This may sound pretty drastic, but far more radical changes are on the horizon.