I do not want to push another pseudoscientific idea on a par, say, with a flat earth, but facts are stubborn things, and they, albeit indirectly, prove that the Black Sea is an artificial quarry for the extraction of some kind of minerals, which later simply filled with water.
This hypothesis has been around for a long time, and it is no more absurd than the flat-earth one, rather even more realistic.
Look at the photos that show the Black Sea bottom and a typical modern quarry. Are they too similar?..
There is a completely scientific hypothesis that the Grand Canyon in the United States is also a career development. If you look closely at this large-scale development, the Black Sea no longer seems so fantastic in the role of the same quarry. By the way, there are no less impressive career developments in the Crimea (see the video below about this), again baffling scientists: what kind of highly developed civilization left its traces here?
Who, when and what was mined here, we, apparently, never know. But such a bold theory suggests an alternative view of the history of our planet. And if we consider that the history that we still use is sewn with white thread (written and rewritten to please those in power), then, of course, such theories, even the most fantastic, seem quite real. Or let's even say this: no less reliable than our "true story".
Promotional video: