Gordon Brown: We think our memory is a camera recording our life in real time, with te video time stamped and stored for later retrieval. He says that when we retrieve a memory there's a chance it can get contaminated by new detail somewhere about the event - without realizing it, we just add it in memory. brown: Diddy simply did what human beings do when it comes to dramatic events. She mistakenly moved that memory to the morning of nine 11. Now, do you see brian williams's predicament? Everyone thinks he's lying in order to paint himself as some heroic war correspondent. But he doesn't think he's lying. That's not how i remember it.