Good point. Most animals don't seem too choosy with the sex. I thought gene diversity was required for health - maybe only with some animals?
by Buttered ToastEmpathy has been discussed here, obviously, but I wonder if there is a physical empathy. What I mean is being able to feel pain or other physical phenomena occurring for someone else as though your own. Can such a thing operate without any emotional empathy present? Is it neurologically different, or a setting or part of the presence of any kind of empathy available? Is it a matter of conditioning that empathic potential to differentiating empathy development? If so, does it then mean those of limited empathy also have a limited "supply" so physical sensation and encounters happen before the higher social awareness and thus stunt emotional dynamics?
This reminds me of these characters from GiJoe when I was a child. How the twins would experience each others physical experiences 100%. To my current understanding, that very concept is inactive as we are.
There is a popular belief about men feeling ill with an intuition, before knowing for sure they've impregnated a woman.
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With that kind of empathy, any idiot will learn how wrong it is to kick a guy in the nuts, and touching oneself in the presence of others will unveil a new kind of harassment, or greeting. Sex would also be more euphoric.