The main thesis of the article was that high resolution measurements can sometimes obscure the pattern, and that scientific insight requires knowing what detail

The main thesis of the article was that high resolution measurements can sometimes obscure the pattern, and that scientific insight requires knowing what details to idealize away. The high resolution data showed the acceleration and deceleration of each stride. On the other hand, the graph based on the the coarser split times hides these bumps and allows for easier analysis using calculus.