Genetic Jigsaw Metaphor

 A lot of human genes work like puzzle pieces. Imagine a four-piece puzzle. If you have all four pieces, they work together. If you have a different set of four pieces, they also work together. If you mix and match, they won't instantly kill you, but it won't work. If you get a mutation in any of the four pieces, it breaks the whole system, which explains the high level of runts in caino masochiens.

 E.g. cold tolerance and low-light tolerance can be inherited separately, but cold tolerance and bright-light tolerance can't be used simultaneously, nor can heat and dark tolerance.
 E.g. high confidence and high ability can be inherited separately.
 E.g. orientals work well on high carb (particularly rice) diets, whereas european pastoralists need lots of red meat and milk. What if you inherit the need for both, due to miscegenation? You have the need for idiosyncratic microvitamins from both sets...but good luck, your stomach physically isn't big enough to satisfy both appetites.

 In particular, caino masochiens jumps to conclusions in a way that would be perfectly healthy with IQs around 160. All the untrained intellectual reflexes work well, assuming the 0.01% used to be the 50%, under which conditions they evolved.

 A bastard is a bastard because he has the ambition of a duke with the abilities of a swineherd. (william of orange.) Ultra cringe. A fop is a man with the attitude of a dockworker and the abilities of a kaiser. "I want to bang a prostitute, like me mam." Gee whiz, he can really afford a lot of prostitutes. Good, uh, work. I guess.

 Aristocrats have to be careful about breeding with other aristocrats, never mind the lower classes.
 E.g. the genes of a purebred horse archer don't go well with a purebred scholar. You can't throw a harness on the wisdom of the ages. The scrolls and codecies don't need brushing. What if you need fresh air and deep reading at the same time, in a windy region? Hwoops.

 By (low) chance, children of peasants can reassemble a noble genome from fragmentary inclusions. However, the child will carry lots of recessive peasant genes, so the grandchilren will see rapid downward mobility. If they marry another peasant (bill gates) it will guarantee mediocre scions. If they marry a noble (no known examples) it will pollute the noble's house.

 There is a division between jumbled-up aristocrats and purebred peasantry. Since both are basically incompetent, I wonder how distinguishable they are in practice. Probably can't eyeball it.

 Maybe the shuffled aristos are crazier? More bastardy, in contrast to content, humble peasants? You don't hear much from peasants who vibe well with the peasant life, because they aren't literate. Don't show up in books or on twitter. When you push them, they don't push back, they congenially move. 30% of american adults don't even |have| facebook. How many use facebook only to say happy birthday and wow that's a nice picture?

 P.S. Fun fact: a facebook subscription costs $70 a year. If it's not worth significantly more than $70 to you, it's a net loss to society. Dead weight.