outhouse
Atheistically
From the above chart (from: Biblical Old Testament Chronology, can the genealogical conflicts be resolved?, a site I do not agree with everything on), there is flexibility on the date.
The Flood was before those civilizations, although there was writing before the flood as in the ten patriarchs or kings who lived before the flood which many cultures mention.
Oh, its definitely up for debate.
Here's a couple of their quotes:
Dr. Stephen Meyer said, Over the last 25 years, scientists have discovered an exquisite world of nanotechnology within living cells. Inside these tiny labyrinthine enclosures, scientists have found functioning turbines, miniature pumps, sliding clamps, complex circuits, rotary engines, and machines for copying, reading and editing digital informationhardly the simple globules of plasm envisioned by Darwin's contemporaries.
Dr. Michael Denton (a non-Christian molecular biologist) said, Alongside the level of ingenuity and complexity exhibited by the molecular machinery of life, even our most advanced artifacts appear clumsy. We feel humbled, as neolithic man would in the presence of twentieth-century technology . . . It would be an illusion to think that what we are aware of at present is any more than a fraction of the full extent of biological design. In practically every field of fundamental biological research ever-increasing levels of design and complexity are being revealed at an ever-accelerating rate.
Since this has gone so off the Adam and Eve topic into the age of the earth, the theory of evolution, the flood, etc. I'm just gonna say, Darwin did not have a very strong microscope, around 100x I think, and when he saw a cell it looked like a blob with a membrane and some fluid like substance inside and perhaps a nucleus. Now we know one cell is immensely complex and for one to just happen by chance is impossible. That's because they didn't.
you posted from a few known quacks that have no standing in modern science.
and it is not up for debate about the age of homo sapiens.