Maybe the growth of "God" signifies the existence of God. That is: if history naturally pushes people toward moral improvement, toward moral growth, and their God, as they conceive their God, grows accordingly, becoming morally richer, then maybe this growth is evidence of some higher purpose, and maybe - conceivably - the source of that purpose is worthy of the name divinity.

Next time you see an unblemished expanse of grass, think about the chemicals that probably got dumped in your vicinity to create it. Are you grateful for that?

God knows greed won't vanish. Neither will hatred or chauvanism. Human nature is a stubborn thing. But it isn't beyond control. Even if our core impulses can;t be banished, they can be tempered and redirected.

..various people had long had the feeling that gain through pain was nature's way

Actually, there is a sense in which polygynous marriage has not been the historical norm - even where polygyny is permitted, multiple wives are generally reserved for a relatively few men who can afford them or qualify via formal rank. For eons and eons, most marriages have been monogamous, even though most societies haven't been

Next time you see a yardful of sprouting dandelions, note that they look remarkably like things we call "flowers." And later, when the flowers turn into fluff balls, look closely at one of those fluff balls and ask yourself whether it's really so unattractive.

Your brain may give birth to any technology, but other brains will decide whether the technology thrives. The number of possible technologies is infinite, and only a few pass this test of affinity with human nature.