You were looking for:
Harvard Prof Says Computers Need to Forget
Continue to the story"A Harvard professor argues that too much information is being retained by computers, and the machines need to learn how to forget things as humans always have. "If whatever we do can be held against us years later, if all our impulsive comments are preserved, they can easily be combined into a composite picture of ourselves," he writes in the paper. "Afraid how our words and actions may be perceived years later and taken out of context, the lack of forgetting may prompt us to speak less freely