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Makes sense if you think about it ;)
However, don't expect Southern-evolved peoples to catch up if you just transfer them.
There are genetic limits to their capacity.
African Blacks improved their average IQ by 15 points by being transported to the US and allowed to evolve there for 200 years, but they're still 15 points or so below average Whites, and there seems to be a hardware limit reached.
That could be changed, but only through selective breeding (> immoral > unethical > evolution is bad for us)