Well, out of all people it was
von Neumann, who at six years old could divide eight-digit numbers in his head, and who even his fellow "Martians" [1] speculated might not be merely human.
"I have sometimes wondered whether a brain like von Neumann’s does not indicate a species superior to that of man." – Hans Bethe
"von Neumann would carry on a conversation with my 3-year-old son, and the two of them would talk as equals, and I sometimes wondered if he used the same principle when he talked to the rest of us." – Edward Teller
“There was a seminar for advanced students in Zürich that I was teaching and von Neumann was in the class. I came to a certain theorem, and I said it is not proved and it may be difficult. von Neumann didn’t say anything but after five minutes he raised his hand. When I called on him he went to the blackboard and proceeded to write down the proof. After that I was afraid of von Neumann” – George Pólya
[1] https://en.wikipedia.org/wiki/The_Martians_(scientists)
