A scientist writing for a general audience describes how memory is reconstructed, not replayed. Each time you remember an event, you rebuild it using fragments: images, emotions, and what you have learned since. That rebuilding can introduce errors, especially when stories are retold. The scientist offers a warning and a comfort: unreliable memory does not mean you are lying; it means your brain is trying to make meaning. “Remembering,” she writes, “is editing with good intentions.”