Like the Soviet state, Google does not forget.

Useful Void: The Art of Forgetting in the Age of Ubiquitous Computing. Like they said in Strange Days, “Memories are meant to fade. They’re designed that way for a reason.” What happens when there’s a record online of every site you’ve ever visited, every flippant comment you’ve ever made, every embarrassing question you’ve ever asked? Maybe computers, like people, should be designed to forget.
From the article:
“My proposal aims to reintroduce the concept of forgetting over time into our digital realm. My goal is to shift the default back from retaining forever to deleting after a certain time. At its core, my proposal does not envision that users cannot change the expiry dates if they want to – the digital equivalent of taking a napkin of somebody’s address and putting it neatly in a file to preserve it. In a sense, we have had the ability to do that almost forever. But it required a deliberate act; and that is what I suggest our digital devices require from us, too.”