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Pride month science

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MK14:

--- Quote from: AVGresponding on June 14, 2023, 03:57:22 pm ---There wouldn't be enough genetic diversity in one family, unless it was particularly large (in the thousands). Also, there hasn't been enough time for the genetic differentiation we can observe in native populations, nor enough time for them to migrate to all the long inhabited regions, which in any case have archaeological records of habitation going back tens of thousands of years in many cases.

--- End quote ---

The scientific evidence, would appear to say that 40% of the Chinese men (300 Million people), are originally decended from the same 3 Men (Great great great ... grandfathers), from around 5,000 years ago.

Edit: I'm trying to illustrate the point.  That a very small number of people, can create a massive population.  Which in this case, uses China as an example.

https://medium.com/the-physics-arxiv-blog/dna-evidence-suggests-300-million-chinese-men-are-descended-from-just-three-stone-age-grandfathers-e91d1c313489


--- Quote ---DNA Evidence Suggests 300 Million Chinese Men Are Descended From Just Three Stone Age Grandfathers
More than 40 per cent of the Chinese Han population can trace their family tree back to three ‘super-grandfathers’ who lived during the Neolithic era
--- End quote ---

TimFox:
How do myths start?
There is physical evidence for massive flooding in pre-historic times with human population.
Oral traditions of local heroes who survive a flood (possibly on some kind of ship or raft) can become more literate and embellished during transmission, until finally written down.
The Babylonian versions pre-date the Hebrew version, but other cultures have such myths.
https://www.britannica.com/topic/flood-myth

TimFox:
An interesting article about pre-historic Chinese demographics:
https://www.sciencedirect.com/science/article/abs/pii/S1040618220300999

james_s:

--- Quote from: VK3DRB on June 14, 2023, 10:13:38 am ---How do you know the flood was mythical? That is a sweeping assumption. What evidence do you have it is mythical? There is evidence of a huge flood in the known ancient world, but the evidence does not allow us to make any definite conclusions. However, the more we poke into the past the more we learn things that overturn our assumptions.

https://en.wikipedia.org/wiki/Baghdad_Battery

--- End quote ---

I have little doubt there were numerous floods throughout history which from the perspective of people at the time, were of biblical proportions. A typical ancient human was born, lived and died within a radius of probably a few dozen miles, a major flood could easily have the appearance of having covered the entire surface of the earth. Additionally there is the fact that these stories were passed on through generations by word of mouth and/or translated numerous times from language to language and assembled from collections of various documents, we all know what happens to a story that goes through a process like that.

james_s:

--- Quote from: MK14 on June 14, 2023, 04:06:45 pm ---The scientific evidence, would appear to say that 40% of the Chinese men (300 Million people), are originally decended from the same 3 Men (Great great great ... grandfathers), from around 5,000 years ago.

Edit: I'm trying to illustrate the point.  That a very small number of people, can create a massive population.  Which in this case, uses China as an example.

--- End quote ---

That's the case of any successful organism. A small number of bacterial or viral organisms can set in and multiply to a population of many millions at which point you become sick. Anyone that has ever had a rodent or insect infestation will have observed a small number of them turning into a population of dozens or in the case of insects, tens of thousands. When I was a kid, carpenter ants once infested a corner of our house and by the time they chewed their way through and spread out onto the wall my dad cut open the wall and there were THOUSANDS of them in there. Vacuuming them out with a shop vac resulted in literally several pounds of ants being collected, which had done some significant structural damage.

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