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Strategies & Market Trends : 2026 TeoTwawKi ... 2032 Darkest Interregnum -- Ignore unavailable to you. Want to Upgrade?


To: Maurice Winn who wrote (25795)11/28/2007 8:32:38 PM
From: Cogito Ergo Sum  Read Replies (1) | Respond to of 218200
 
Yes M, that nuclear winter scenario really narrowed down the options... I guess that allowed only the cream to survive...
I don't see how we can say that a smaller gene pool necessarily left Africa though.. but it certainly got abbreviated..

..from the What doesn't kill us, makes us stronger department..

I'm still fascinated that no one else left Africa.. At the time of departure the pool must still have been rather homogeneous... Is there evidence of diversity before the exodus (to cause the departure) ?

I guess Africa got cheated not have a cataclysmic volcano of their own... <ng>

The Black Swan



To: Maurice Winn who wrote (25795)12/2/2007 10:25:34 PM
From: carranza2  Read Replies (1) | Respond to of 218200
 
Mq, I will now answer a question which should have kept you up at night, namely, if substantial genetics mutations are rare from one generation to the next, why have IQ levels gone up so much over the years?

Hmm, you say you haven't been wondering about that at all? Well, I will answer the question now that you have indeed begun to wonder about it.

Here it is, thanks to Google:

brookings.edu

This article suggests that intelligence, like basketball, is a skill. If you have a small genetic advantage, then you are likely to find the environment which will reinforce that skill or it will find you. If you are a smidgen taller and quicker, it is likely that you will end up playing the sport, getting coached, etc., thereby developing the skill. And because skills are sharpened by practice, a tiny genetic advantage in inherited intelligence can be honed into a substantial ultimate IQ advantage, i.e., higher IQ scores, because the intelligent will get better schooling, more attention, etc. All of this of course militates strongly in favor of stimulating children, Yes, the mobiles over the cradle and the interesting books around the house will pay off.

The lesson, I suppose, is that if you wish to succeed then you must continue throughout life to challenge your cognition, We must keep doing things which are a little beyond our abilities until we master them, then go to the next difficult thing.

I think SI is wonderful for this.