Paradigm shift: Noun. A fundamental change in approach or underlying assumptions. The world is full of paradigm shifts. At one point in time, everyone alive believed the world was flat.
Then a couple of Greek guys named Pythagoras and Aristotle began theorizing about a round earth, and people’s thinking began to change.
Christopher Columbus is generally credited with proving the earth was round when he sailed around the world, but let’s just say he had a little help from the ancient Greek philosophers.Read more on themighty.com