Many humans have photographic memories. Not common, but not unheard of for people to be able to memorize long portions of text verbatim. For example, the Wikip

Many humans have photographic memories. Not common, but not unheard of for people to be able to memorize long portions of text verbatim. For example, the Wikipedia article https://en.wikipedia.org/wiki/List_of_people_claimed_to_possess_an_eidetic_memory https://en.wikipedia.org/wiki/List_of_people_claimed_to_poss... contains several examples of people who were able to look at pages and recite them back. That is actually a much stronger ability than GPT since GPT has presumably looked at them 100 times.