I think that, eventually, someone will be able to create technology that allows the brain to experience simulated sex that is indistinguishable from the real thing. Thinnk online porn on steroids. When that happens, a lot of the motivation to procreate with actual women will disappear.
That’s a popular science fiction trope as well. when fantasy or simulated reality become as real as acual reality, societies enter into a period of decline. People increasingly disappear into their fantasies and forget how to deal with reality.
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