>I have no idea. All I have been trying to do for the last billion
>posts is to explain the meaning of a Russian word.
You've done quite a bit more than that. But, as often happens, because you've done it in a billion posts who wants to really bother with tracking the permutations?
>Oh, to answer your question below. The child of a Russian and a Jew
>is the same as the child of an Italian and Ethiopian. That is, "I am
>half Italian and half Ethiopian." Or, to pick an example closer to
>home, me. My mother is German and my father is American of
>indeterminate heritage. Therefore, I am half-German and
>half-American of indeterminate heritage. Should I have children with
>a Chinese person, they will be one-quarter German, one-half Chinese,
>and one-quarter American of indeterminate heritage. My ex-girlfriend
>Nelli is one-half Russian, one-quarter Tatar, and one-quarter Cossack.
You speak as if this is some kind of natural law. Blood quantum has a specific and problematic history. It's a legislative corollary of the one drop rule and taken to its logical extension means you can disappear people with blood quantum based restrictions.
In other words, the quantum of hokum and danger in the concept is high.