The Straight Dope’s answer to the question “Why are Europe and Asia considered separate continents” seemed well-researched and accurate, but at the same time, seemed to pull its punches. Historical and cultural considerations explain why Europe and Asia have been considered separately, but they do not justify an exception to the geographical concept of “continent”: a large land mass unconnected to other large land masses, excepting connections by isthmuses. The Ural mountains can hardly be considered an isthmus.
We no longer consider the Sun to revolve around the Earth; we no longer consider the Earth to be flat. Why did we persist in holding onto the classical misconception that Asia and Europe are unconnected?
P.S. If something I say sounds ridiculous, I might be joking.