Wednesday, November 4, 2015

Ideology Versus Science

Yesterday's blog post was about Ideas Versus Facts [link] and that's just another way of saying Ideology Versus Science. Now, an ideology is supposed to be a theory/prescription of human behavior based on observed facts and tested by later observed facts. That's what it's supposed to be. Unfortunately, ideologies, whatever their origin, can become very reality-resistant, and when facts show up that invalidate the ideologies, the adherents tend to either ignore the facts or distort them to the extent of lying about them.

But another way ideologies defend themselves, so to speak, is by making up facts, and since actual concrete facts are observable for the most part, such made-up facts tend to be very vague and not falsifiable. So much so, that John Derbyshire refers to such facts as 'magic.' This is from the Unz Review [link].

Why Race Realism Makes More Sense Than “Magic Dirt” Theory

I’m a race realist. What does that mean?
It means I don’t doubt that race is a real and important thing; more than that, it’s fundamental to biology.
TitleP-Darwin-OnTheOriginOfSpecies-WhitmanFirstEdition1859[1] The foundational text of modern biology is Charles Darwin’s book On the Origin of Species by Means of Natural Selection, subtitle: “The Preservation of Favored Races in the Struggle For Life.” By “races” Darwin meant local varieties of a species.
Any widely distributed species exhibits local varieties—races. If local varieties are left alone for long enough, breeding mainly within their local groups, they diverge. If left alone for way long enough, they diverge so far that members of local group A over here can no longer interbreed with members of local group B over there. The different races have then become different species.
That’s the origin of species. That’s what Darwin’s book is about.
How long is long enough? That depends how intense is the pressure of selection driving the divergence. Animal breeders, practicing artificial selection, can get noticeable divergence in a few tens of generations. The Russian zoologist Dmitry Belyaev bred tame Siberian foxes from very wild ones in just forty generations. He got significant tameness in just five generations.
Natural selection doesn’t work that fast; but if selection pressures are strong enough, tens of generations are enough for observable divergence. And it depends on what you mean by “natural.” Greg Cochran and Henry Harpending have argued that the high mean IQ of Ashkenazi Jews developed across a thousand years—say forty generations—as a result of rigidly-enforced social practices and norms. [Natural history of Ashkenazi intelligence, Journal of Biosocial Science, September 2006]
The major continental-scale human races have been more or less separated, often in very different environments with different selection pressures, for hundreds of generations. The really big split, between the group that left Africa and the group that stayed there, happened from fifty to seventy thousand years ago—two or three thousand generations. Expect lots of divergence between the human races.
Darwin didn’t know how heritability worked. He knew that some traits are heritable—everybody knows that—but he didn’t know the mechanism. Now we know it: The mechanism is genetics.
Read the rest here:
Quibcag:  Again we have scientist Rika Shiguma, of Haganai (はがない)

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