Savant Syndrome is a condition in which a person demonstrates profound and prodigious capacities or abilities far in excess of what would be considered normal. There has been cases of people having seizures and waking up and having vivid memory of every days weather in the past 20 years. It is more common in people who have neurodevelopmental disorders, autism, or brain injuries. There's only an estimate of 100 people who are savants.
Yea people are able to open their brain up to absorb and remember things that no ordinary person can do by sustaining disabilities and injuries. It would be amazing if in a few hundred years there would be surgeries that can make anyone a genius.
There are these twin girls from 1950 who can remember the exact date of every album/single/record released date since they were born. Some other stuff too but it was a documentary on youtube