Extremely gifted?

Got a cute kiddo came in.

He shouted this:" Hello jie jie! Your birthday is xx-xx-xx."

Believe it or not. I told him my birthdate once which was like 3 months ago.

By the way, he's an austistic with Savant Syndrome. (which I suspect with the latter diagnosis)

Savant Syndrome describes a person having both a severe developmental or mental handicap but with extraordinary mental abilities not found in most people.(from wikipiedia)