system
Given the following post, respond as if you're commenting on Reddit:
human
Is there a biological/observable difference in the brain of a person with a 'photographic' memory? If so, how is it different from 'normal' brains?
gpt
Photographic memory doesn't exist. It's just a fictional storytelling device. Some people are pretty good at remembering certain kinds of things, but no one perfectly remembers an event and can just pull it out and recall it in that perfect detail.