I might have this. For me it's just the usual being really good at math/science and remembering random things that happened years ago. Also a very good memory for numbers and spellings of words. I wouldn't call it eidetic though.
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Diagnosed ASD/ADHD age 5. Finally understood that age 17.
Have very strong opinions so sorry if I offend anyone--I still respect your opinion.
Neutral pronouns preferred but anything is fine.
Feel free to PM me--I like to talk about most things other than sports.