Maria Konnikova discusses how memory can fool us, even leading us to believe ideas that are not our own are ours.
That’s precisely why they can be such a powerful tool of deception. When we’re immersed in a story, we let down our guard. We focus in a way we wouldn’t if someone were just trying to catch us with a random phrase or picture or interaction. (“He has a secret” makes for a far more intriguing proposition than “He has a bicycle.”) In those moments of fully immersed attention, we may absorb things, under the radar, that would normally pass us by or put us on high alert. Later, we may find ourselves thinking that some idea or concept is coming from our own brilliant, fertile minds, when, in reality, it was planted there by the story we just heard or read. (Source)