picture in my mind

The next day, we ran into Narnie in the driveway. "Hey Jake, how's the pi?" she asked.

"Good. I haven't memorized anymore, though. Mom says it's a waste of time."

I had, because it was. Jake could keep going and going until the end of time -- but why? The synesthetic autistic savant Daniel Tammet memorized pi out to fifty thousand digits and recited it to raise money for an autism charity, which was a wonderful thing. (Ultimately, the recitation took him more than 5 hours. He used chocolate to get through it. That, at least, I could relate to.) But even Daniel Tammet talked more in his book about the challenges of managing his social anxiety and the physical difficulties of the recitation than any particular intellectual challenge.

Narnie came right back at Jake, with the world's most innocent look. "What?" she said. "No, silly. I was talking about cherry pie."

Jake cracked up, shaking his head as he got into the car. There's no chance of him getting a fat head as long as Narnie's around.

I laughed, too, but something was nagging at me. Halfway down to the university, I looked at Jake in the backseat in my rearview mirror. He was playing Angry Birds on his iPad.

"Hey, Jake," I said. "Why did you stop memorizing pi at forty digits?"

"I didn't stop at forty. I stopped at two hundred."

"But before. Why did you stop at forty?"

"It was forty including the three. Thirty-nine decimal digits, actually."

"Okay, but why did you stop there?"

"Because with thirty-nine decimal places, you can estimate the circumference of the observable universe down to a hydrogen atom. I figured that was all I'd ever really need."

-- The Spark, A Mother's Story of Nurturing, Genius and Autism 

O.O Reading about genius is mindblowing.