“He was in the shower, not thinking of anything. Then it hit him, a neutral position, then he rushed off to the clinic that day and used his own patients and tried to find this concept. He knew that there was this time and space when the foot was supinated, and later could be pronated. However, there had to be a short margin where the foot couldn’t be in both supinated and pronated. There had to be a neutral zone, almost like a concept of zero.”
