NapLajoieonSteroids wrote:There are myriads of problems with this.Endovelico wrote:You may try and make it sound ridiculous, but just think:kmich wrote:So for those hundreds of thousands of years after our hominid ancestors migrated from Africa, those who lived in the huts and caves of northern climates and became "white" used their minds, while the ancestors left in Africa had to stay busy running away from wild game and learning how to throw spears and becoming athletic. Got it
In the colder northern climates you don't just pick your food from trees. You must figure out how to feed yourself, you must figure out how to survive winter, you must develop more sophisticated tools to ensure your survival. The cleverer ones survived, the dumber ones died early. Physical strength was useful but wasn't sufficient. In the warmer African climate, housing wasn't a necessity, food was readily available, predators were abundant and very dangerous. The stronger, faster individuals survived, the weaker ones died very early. If you think that a few thousand years of pruning the less efficient in either situation wouldn't make a difference, you are kidding yourself. Under present conditions these differences will fade away in time.
-If it were really eugenic pruning, there'd be much more diversity then there is now.
-Homo Sapien Sapiens have never been particularly isolated or sedentary. Long distance migratory patterns and inter-mixing is a very common theme up to the beginning of agriculture.
-Mate selection (or even getting the chance to mate) is a very capricious thing.
-Even if mating correlated with adaption to the surrounding environment it would only be done to minimums. You don't need to be all that fast or smart (both as presently measured) to succeed in those climes mentioned. In fact it may be preferable to be rather mediocre. As a rule, positive and negative outliers, for both body and mind, are treated suspiciously or are generally unwelcome.
-The delineation between groups is vague, arbitrary and is poor at conceptualizing. Diseases often associated with one area or people are often found in other areas at high percentages (Sickle cell anemia comes to mind.) Is it then an "African disease" or a "Mediterranean" one or an "Ashkenazim Jewish" one? How is that decided? Who does it belong to more and what are we to gain by assigning it to just one group?
-You mention a lack of housing; but my understanding is that housing has always been a pretty universal trait in Africa with the exception of hunter gatherers. Hunter gatherers are not only located in Africa of course.
-In general, the differences are not that pronounced. West African elite sprinters and East African distance runners may beat out all others due to some sort of genetic pressure, but this is a cross section of the top of the top outliers.
-Most differences of IQ average [if we are to trust IQ testing to begin with] are due to a lack of acculturation, at least here in the US. When corrected for, the average white and black American will score around 100 and fall within the 85 to 114 range. There is no reason to doubt that this is generally true in all post-industrialized societies (or is presently capable in most of the rest.)
Now if were were talking about maybe the San people or the Australian aboriginals or other groups that seem either closely tied to the origin of the homo sapien sapien species or long isolated from it; maybe I'd entertain that there is an argument for a change in cognitive ability there; but this is dealing with a very small segment of humanity and doesn't seem to reflect most of the planet.
Maybe I should google it for myself but I will ask anyway where exactly did the Australian aboriginals come from? They are the only group of people I know of that I haven't seen information of how they got where they are.