Is there a “moral fact” about the function of cultural moral norms and our moral sense? Stable ecosystems are better understood as stable competition with some examples of cooperation for mutual benefit. — Mark S
Have to disagree with this. Take a living human body as a typical fairly stable dynamic environment. Around half the cells in the body are non-human
see here (The figures have recently been revised in favour of the human cells a bit, I think, but the ball park is little changed). And for most of us, most of the time, cooperation dominates, to the extent that without the right gut biome, for instance, one would be unable to digest food. When 'competition' sets in, one is ill, and sometimes one loses the competition and dies.
At the level of genes, game theory applies, and it does not require that participants understand the theory, merely that they have 'interests' (which in this case we impose on them because we are only interested in the ones that survive.) Genes themselves of course have no interest either way, they have an effect on the organism, and either survive to reproduce or not. We call those that survive 'winners' and call their effects 'self-interested'. And we call that equivalent behaviour in ourselves, 'rational'.
So let me put a little challenge to you, because what you say above about the predominance of competition is the received wisdom that founds also the terminology of game theory, and a deal of politics too: if self interest is rational, then reason it out for me. Because in fact game theory is symmetrical, and evolution works just as well if we call the survivors the losers; the aim of life is to go extinct and 99.9% have managed to find their rest sooner or later, and we are the unlucky ones who have to carry on a bit longer.