Fascinating individual. A savant of extraordinary language and number abilities. Here is is blog: [Optinem].
Here is the BBC movie about him.
Savant: The boy who saw numbers
And here is how he sees pi:
http://en.wikipedia.org/wiki/Savant_Syndrome
This is spooky and amazing. Daniel can reel off the first 22,000 digits of pi without an error...5 hours of recitation of pi...