Commitment is also biologically feasible. We want a partner all to ourselves because we want to produce offspring with them. We want to foster our genes, because we instinctively have an urge to protect our own genes. Hence, you will see people sacrificing their lives more often to their relatives (and rarely to complete strangers), since they share many genes with you.
If your wife had an affair in the past, she would probably become pregnant and you would need to take care of the child.
You would be taking care of someone who doesn't have your genes. Hence, you get no Darwinian fitness benefit, but you are given the burden of raising a child.
My heart is sad
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Marriage was designed for security reasons.
Commitment is also biologically feasible. We want a partner all to ourselves because we want to produce offspring with them. We want to foster our genes, because we instinctively have an urge to protect our own genes. Hence, you will see people sacrificing their lives more often to their relatives (and rarely to complete strangers), since they share many genes with you.
If your wife had an affair in the past, she would probably become pregnant and you would need to take care of the child.
You would be taking care of someone who doesn't have your genes. Hence, you get no Darwinian fitness benefit, but you are given the burden of raising a child.
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[Old Memory]
9 years ago
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That's actually a good point.
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sega31098
9 years ago
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I learned this in Biology first year.