Eh? The only thing you showed was that their probability calculation was inaccurate (and I totally agree). I'm sure since you read the whole article you noticed that the majority of it was discussing the cultures around the ancient near east and how similar those cultures' treatment of geneologies is to the Biblical accounts.
I didn't see anything in your posts to suggest that their math was somehow unbiblical (what does that even mean? Which operations in particular do you find unbiblical, addition, multiplication?)
Well, yes, the whole probability thing is a little off (ok, a lot off).
It talks about the first patriarchs having only the numbers 0, 2, 5, 7 and 9. They only talk about these 5 numbers in their probability. Why is it so important that they are in the first 10 but then not in the last 10? There's no explanation for this.
12 was a very sacred number yet they don't use it once in the calculations. I see where it says 5 + 7 = 12 and they do show that in 3 of the calculations, but in Lamech and Methuselah they don't show this. They don't use 5 and 7. 12 can be broken down into 6 and 2, but then why did they use 40 so much? Why did they use 15 in Abraham's? Why did they use the number
8 three times!? That was where I think it's unbiblical. 8? No matter how you slice it, 8 is not sacred to any of the cultures nor biblical.
Nahor looks like he was an anomaly to them. His first two calculations they had to subtract a year by calling it 6*2 mos (again, not 12). Then at his death age they use 8.
Why didn't any numbers end in 6? It seems to be used a whole lot in the calculations (Adam, Enosh, Jared, Enoch, Methuselah, Arphaxad, Shelah, Eber, Peleg, Reu, Serug, and Nahor [12 out of the 20]). Why isn't it used as the last digit?
I see a lot of liberties taken with this chart. When you add, subtract, multiply and sometimes use a combination you can get a lot of different numbers. Especially when you use 2, 3, 5, 6, 7 and even 8 to get there.
I did read the rest of the article, but it's hard to take it as credible when they thing they are trying to prove seems to be fudged to make it look like it fits.
I see the transition throughout the Torah. You're looking for a hard switch from myth to historical when the cultural norm in the entire region changed slowly. The first thing you need to do is stop looking at the old testement from a 21st century point of view. Their genres and standards were very different from those we have today.
Then please explain more, or give an article. I'm not poking and prodding at you, I honestly would like to know more about it.