Google CEO Sundar Pichai: 'I don't know whether humans want change that fast'

From artificial intelligence to cheap smartphones, Google is on the frontline of technological development. But is it growing too big and moving too fast? A rare interview with Google’s boss
When Sundar Pichai was growing up in Chennai, south-east India, he had to make regular trips to the hospital to pick up his mother’s blood-test results. It took an hour and 20 minutes by bus, and when he got there he would have to stand and queue for an hour, often to be told the results weren&rs