Clovis and Crystal Quartz

Some gorgeous photos:

 Why did Clovis toolmakers choose difficult quartz crystal? New study offers clues

NEARA fieldtrips

Worcester, MA - April 19

[?] CT - May 2

No doubt the details are available at www.neara.org

Found a Snappit Point, over in RI

A short video:

DNA population comparison is BALONEY

 According to my chatbot:

Percent of variable DNA examined

Humans have roughly 3–4 million common variable sites (SNPs and similar variants). Standard population‑genetics datasets examine 300,000 to 1,000,000 of those.

The proportion is:

$$\frac{3\times {10}^5\text{ to }{10}^6}{3\times {10}^6\text{ to }4\times {10}^6}\approx 10\mathrm{\%}\text{ to }30\mathrm{\%}$$

So population‑comparison studies typically use about 10–30% of the variable DNA.

That’s the number.

-------------------------------------------------------------

Got that? Between 1/10 and 1/3 of "important" dna is compared. A vast playground for cherry picking.

Also, do not wait around for them to perform any form of reasonable sampling. I read something about using "30" individuals. Are you kidding me? If a tree has 100 branch points, you will not deduce it from a sample size of 30.

Atherton Brook republishing

I was reading an old post. I am so pleased to have discovered places like this. Please someone, go have another look.

https://rockpiles.blogspot.com/2022/04/atherton-brook-quabbin-and-also-site.html?

From my Chatbot:

"Consumer ancestry tests do NOT analyze more DNA for Native American ancestry than for any other population.

They use the same SNP chip — typically 600,000 to 1,000,000 SNPs, which is about:

$$\frac{\mathrm{1,000,000}}{\mathrm{3,200,000,000}}\approx 0.03\mathrm{\%}$$

So, the amount of DNA examined is ~0.02–0.03% of the genome, regardless of whether the comparison is Native American, European, African, or anything else."

Next time you hear a genetic analysis, this is why it is bullshit.

Three Neanderthals Cartoon

(AI Cartoon...not rock pile related).

Preparing for the hunt:

A vigorous discussion of options:

Wiser heads prevail: