Books. I own probably a thousand physically, have hundreds of thousands of PDFs and epubs between my laptop and NAS.
The superpower is that I have a book “sense.” I know about where each book I own is - my shelves are not organized in any meaningful way, because I’m ADHD and will just pull one out to look at something and reshelve it. I’m not at home right now, but I can imagine my shelves and stacks in my head - can tell you where Palestine and the Palestinians or The Forty Days of Musa Dagh or the beautiful English translation of the 左传 or House Made of Dawn or the book on Scottish coins i thrifted a few days ago all are.
I can look at almost any given strangers bookshelf and recognize/have read at least one of their books. I navigate libraries by feel and don’t need to look up books.
I also read inhumanly fast I think, and have somewhat of an eidectic memory for text. It’s been almost twenty years since I read The Great Gatsby but a student brought it up and I was able to do a 45 minute lecture on it, with quotes from memory.
I’m also prodigious at sex. I’ll read more books in a week than most do over their life, and I’ll also fuck more people in that week than most do over their life.