Yeah, that’s an excerpt of a German documentary about so called savants
, autistic people that don’t forget things. There was another guy, an ex-baseball player that once got hit by a baseball on his head and he could remember every day of his life since… what he did, how the weather was, etc.
And another guy was a human lexicon which you could ask something about history and he could answer… but he wasn’t able to take care of himself. He read thousands of books and never forgot anything but he couldn’t go on the streets without getting lost.
Very amazing, indeed.