I think we need to get rid of sex all together. sex is unproductive and is a very inneffecient way to grow a human being. just think, if a child were grown outside of a human being it would would allow said being not to be forced into the burden of being pregnant allowing them to work at their jobs, and continue their normal routines without stress. This would also lessan the stereotype of being the child bearer. Aside from the effeciency of it, no sex eliminates the substantial effort one puts into a relationship to encourage mating and put it toward something much more rewarding.
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does spock think humans need sex? I don't think so, its illogical...