In the Brainman documentary, I had watched Daniel divide 13 by 97 and give the result to so many decimal places that the answer ran off the edge of a scientific calculator. A computer had to be brought in for verification. He multiplied three-digit numbers in his head in a few seconds, and quickly figured out that 37 to the fourth power was 1,874,161. To me, Daniel’s mental math seemed much more impressive than his memory.
