That is an interesting way to look at it. Thank you for the reading suggestions! However it seems to me that this is only a problem for 'exclusive' polygamy, o

That is an interesting way to look at it. Thank you for the reading suggestions! However it seems to me that this is only a problem for 'exclusive' polygamy, of which, one might say, traditional monogamy is just a subtype (the advantage of monogamy being that aproximately 50% of people are male/female, amd mostly hetero) But wouldn't a 'relaxed'/open approach be at least as good? Among obvious advantages like (presumably) less frustrated expectations, breaking of trust etc, you also wouldn't have to rely on 1:1 matching. People that might otherwise be sexually frustrated may have a chance at least at sexual relations, if perhaps not erotic (in the etymological sense) elationships. (One reason being that one may be less 'selective' when looking for a mate doesn't involve life long commitment) Also, there could be less conflict and risky behavior (designed to impress) stemming from competition over mates.