Reigning_King posted... . It isn't a win-win, it's a lose-lose because just like machines that are 100% efficient can't exist you will never get more than what is taken from you in a relationship with another human and while the rewards in friendship are higher so are the costs.
This is some serious lack of critical thinking. Mutually beneficial symbiotic relationships are common and easy. Its nearly effortless for me to help my parents with computer problems, it takes no extra work for my dad to smoke some extra brisket for me to eat.
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?huh?........ it's just a box.