It is also important to note that facts, in the true sense of the word, represent single observations of a phenomenon, while beliefs are more about models that

It is also important to note that facts, in the true sense of the word, represent single observations of a phenomenon, while beliefs are more about models that reflect relationships between observable phenomena and a way to model and predict behavior. Thus it's easy to understand that a single observation, particularly one which is given at face value, is not enough to scrap whole models. To provide an example, should we scrap the whole notion of gravity accelerating all dropped objects uniformly independent of mass if someone observes a feather taking more time to fall than a canonball? I mean,that's a fact. Anyone ca see it and reproduce the same behavior. So, should everyone just abandon the notion of gravity acritically because of a single fact was presented?