female all have talented kids because they married up [at least equal]
male mostly married down so about 2/3 of their kids are not doing very good
my graduate school classmates:
their kids are 95% doing very well even though their wives are from countryside w/o much education.
while I do not discriminate anyone as human being, those from countryside are less likely talented due to their parents are mostly within 20 miles from each other.
seems great genes dominate because I ALSO observed very pretty women mostly have their daughters also very pretty.
Many medical doctors say women's first children are mostly much better than the rest [possibly due to mothers are more than ready to give their 1st births]
While in the old days there were mostly many kids in a family, a foreign book said successful men are 40% the first child in their family [My graduate school proved it is true.]
My power company had almost everyone who died at work the only son in the family.
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I believe we know very little about the world around us, not too much better than the people 300 hundred yrs ago before Newton [although we know sooooo much more than the people then]