Originally posted by lucid eyes
If 75 000 years makes scientists "heads spin" their heads must be small indeed.

It doesn't. Scientists are continually revising things, but they want more proof than the author of "Slave Species of the Gods" whose credentials
include a Bachelors' in pharmacy, credits as an actor and songwriter, but who apparently can't tell an Australopithecus from an Aardvark:
en.wikipedia.org...

Im always surprised at the indignation and skepticism towards everything that surpasses little pea-brain.

In reading about something that SEEMS impossible, the first thing to do is check the credentials of the claim.
* Does the person making the claim have a good background in the field?
* Are they often quoted by others in the field? (sometimes laymen's work IS cited by scientists. Although I'm not a paleontologist, I will be cited
some year by paleontologists who supervise me for my work on the Alamosaurus.)
* Is there other evidence that supports the claim?
* Do the rest of their supporting facts match what's known? (in this case, the article quotes an archaeologist at a nearby university saying that
the sites have been studied before (in spite of the claim by one of the discoverers that they've been dismissed out of hand and so forth) -- so I
suspect if you knew the terms to use and went digging through academic papers and PhD dissertations, you'd find several dozen papers on the area.)
The question of the star alignment to "70,000 years ago" is a good one. Depending on what stars you pick, you could probably find ways of aligning
it to any number of stars. And remember, the look of the constellations 70,000 years ago was a bit different because the apparent position of the
stars changes as our sun drifts through the galaxy.