There is no storehouse of information about the past anywhere in our brain . First, the mind sifts through the multitude of stimuli that enter it during an actual event. The time, later events, and even later recall, color or alter memories. During the creative process of recall, sketchy memories of events may be filled in with imagined details. And, an amazing amount of information is simply forgotten-gone, not just hidden away in some deep cavern of the mind.
Memory is neither complete nor fixed.
Nor is it accurate. It is a traitor at worst, a mischief-maker at best. It gives us vivid recollections of events that could never have happened, and it obscures critical details of events that did. Yes, memories can even be created, not from remembering true events, but by implanting imagined events onto the mind. In fact, it is possible for implanted and enhanced memories to seem even more vivid than memories of actual past events.