[vivisectus]

In other words, we could say that under the "Flood Hypothesis" ... one prediction would be that there would be universal flood legends with many common features from all over the world.

On the other hand, under your "No Flood" theory, why would there be universal flood legends? Seems that there might indeed be SOME legends ... tracing back to whatever culture originated the story ... but why would it be so universal?

In the same way the "the world was created from the primordial sea by dragons" hypothesis that involves Tiamat is supported by the prevalence of creation stories to do with water. You find them from one end of the globe to the other. All the land is water, until a spirit animal recovers or finds a piece of land.

If your "no dragons" theory was correct, then why do we find both creation stories that involve water, AND stories about dragons all over the place?