When I was a graduate student in biological sciences, we lab folk used to joke about eventually publishing in the "Journal of Negative Results" when we had disproved our own hypotheses. (I did.) Here is a presentation on why even positive results are subject to doubt, as we all know to be true empirically.
In market analysis we have even less of a chance of being correct, unless......:)
T'is a good thing in investing and speculating to be humble, quick to admit error, and move on. In medicine we may have to a wait twenty years to learn that NSAIDS kill many thousands by gastrointestinal bleeding and hypertension.