Some think that the scientific method is all of science. Observation can in fact scientifically establish with high confidence that something occurs. Classic statistical hypothesis testing formally attempts to disprove a hypothesis with a given probability, but science is more than that, and a single experiment does not suffice to disprove a well supported hypothesis. The experiment must be well designed, properly interpreted, and reproducible. As indicated, "parallel science" and "alternative facts" permeate our society.
