Second...this has been previously published as The Structure of Scientific Revolutions -
The Structure of Scientific Revolutions (1962; second edition 1970) is a book about the history of science by philosopher Thomas S. Kuhn. Its publication was a ... History - Synopsis - Kuhn's opinion on scientific ... - Influence
What we have here is a Paradigm Shift.
Before the discovery of black swans in Australia, it was known that swans were always, absolutely, in every occurrence, white.
The phrase “black swan” refers to something which was thought not to be possible, yet, one day, shows up staring you in the face.