Even with mechanical or systematic traders there is an extreme high rate of failure due to the fact that many try to out perform their mechanical systems... or try to avoid losses. (trendfollowingmentor.com)
That's difficult to accomplish, and a major reason why new technologies suffer high rates of failure. (ucsusa.org)
«We determined that distal tears, involving where the ligament attaches to the bone across the joint, had higher rates of failure when not treated with surgery as compared to proximal tears.» (sciencedaily.com)