@LE_MALEM no, this guy is a monster because he apparently managed to understand what he saw/read, which is far more impressive than just a good memory.
Comprehension and reflection are far more important than memory.
I used to chat with a teacher at a Medical School, one of the main courses he taught was meant for 2nd year students.
And there was one thing that truly pissed him off to no end with the program of first year students' first semester (in our country), it was the amount of courses that just required the students to memorise things and know it by heart.
He used to say while angry that "Any 10 years old kid with a bit of memory could pass the first year if they have just a little bit of intelligence and a good memory."
To be able memorise things can be good, but if you can't even understand what you 'learned', that's just useless.