No, no, really! Memory's not perfect. It's not even that good. Ask the police… — Leonard

No, no, really! Memory's not perfect. It's not even that good. Ask the police. Eyewitness testimony is unreliable. The cops don't catch a killer by sitting around remembering stuff. They collect facts, they make notes and they draw conclusions. Facts, not memory. That's how you investigate. I know. It's what I used to do. Look, memory can change the shape of a room. It can change the color of a car and memories can be distorted. They're just an interpretation. They're not a record. They're irrelevant if you have the facts.