No
wonder, then, that in the early stages of the development of any
science different men confronting the same range of phenomena, but not
usually all the same range of phenomena, describe and interpret them in
different ways. What is surprising, and perhaps also unique in its
degree to the fields we call science, is that such initial divergences
should ever largely disappear. For they do disappear to a very
considerable extent and then apparently once and for all. Furthermore,
their disappearance is usually caused by the triumph of one of the
pre-paradigm schools, which, because of its own characteristic beliefs
and preconceptions, emphasized only some special part of the two sizable
and inchoate pool of information.