Peter's comment comes off as satire to me. A joke about how absurd it would be for google to store 8 exabytes of data for decades because it might one day be useful.
Because it might one day be useful for.. targeting ads? I can almost see the abuse potential, the ads "I know what you did the summer of 1997" will turn us all into mind controlled consumer drones. (those of us who are old enough)
