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:	post by Critical thinker at 2013-10-18 01:24:32

no%20wait%20what said	[orig][quote]
First, how big is a 'race'?

Good definition here:

http://blogs.discovermagazine.com/gnxp/201...cal-construct-matters/#.UmDEo1O0BAg

A core principle in the selective breeding of everything except humans is the idea of 'hybrid vigor', the tendency of first-generation

First-generation crosses, not retained.

Alternatively, if you accept the need for periodic outmarriage to avoid inbreeding, how big is the 'race' pool that can be outbred to while avoiding negative effects?

Some good information on inbreeding minimums here:

http://genetics.thetech.org/ask/ask113

Some useful information here on mixed-race health:

http://www.majorityrights.com/weblog/comme...health_consequences_of_race_mixing/

So in the first graf, 'race' was about genetics, and in the second, 'race' is about culture. Which is it?

Cultural traits and values are heritable.

Racism has not prevented Japan from falling exactly into this trap.

I haven't seen Japan having any such problems. If anything, the problem Japan faces is typical of first-world nations: declining reproduction rate.

I'm not going to comment on anyone else's neuroses, but breeding to a set standard is the definition of an 'evolutionary dead end'. Populations that do not change, and do not generate new characteristics, are at an advanced risk of failing to survive if conditions change.

Standard =/= zero change from status quo

Please identify several societies that became mixed race, how it ended poorly for these societies, and on what kind of timescale.

Brazil, Mexico, India, Russia.

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