Some scientists struggle to understand walking, as is evident in this study: “Walking Fast—Ranking High: A Sociobiological Perspective on Pace,” A. Schmitt and K. Atzwanger, Ethology and Sociobiology, vol. 17, no. 5, September 1996, pp. 451–62. The authors explain [AIR 15:5]: “We hypothesized that habitual fast walking might be a means to acquire and/or to […]