Upvoting, b/c that too:-).

I was just hyper-focusing on how that particular event, shared by other cultures in that identical region, told that same story about it, not b/c "they made it up", but b/c it actually did really happen... and yet, at the same time, looks nothing at all like the picture books, which have pictures of like Toucans and such that those people likely never saw in their entire lives, but I guess enhance the sales of the picture book and thus that exists now.

Ofc there are other possibilities too - perhaps the story of the ark refers to a spaceship that emigrated humans from elsewhere, originally. Stargate: Atlantis (spin-off series from Stargate SG-1) explored that thought, as did the 2009 movie "Knowing" with Nicholas Cage:-D. I guess you could argue that the movie "The Matrix" did as well - the ark being far more figurative in that one, but where people + their surroundings were taken elsewhere after dying off in the original location.

Truth sure is stranger than Fiction:-) - and correspondingly, much harder to describe. So like if we had to describe "the world-wide flood event" to a child, it would be both "yes it actually did happen" (most likely) plus also "it wasn't quite like that".