Eric Schmidt suggested that young people should be entitled to change their identity to escape their misspent youth, which is now recorded in excruciating detail on social networking sites such as Facebook.

"I don't believe society understands what happens when everything is available, knowable and recorded by everyone all the time," Mr Schmidt told the Wall Street Journal.

Using profiles of it customers and tracking their locations through their smart phones, it will be able to provide live updates on their surroundings and inform them of tasks they need to do.

"We're trying to figure out what the future of search is," Mr Schmidt said. “One idea is that more and more searches are done on your behalf without you needing to type.

"I actually think most people don't want Google to answer their questions. They want Google to tell them what they should be doing next."