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> myself included, would strongly disagree with the latter half of that statement

In your earlier comment you seemed to be in perfect agreement:

> Human nature may not have changed

This echoes my sentiment that nurture may change from one generation to the next but nature stays the same. Our traits that stubbornly stay the same probably come from our nature, while the ones that change easier over generations or centuries come from nurture. This isn't about which one is more important in defining you. Fresh out of the womb humans have probably been the same for many, many millennia. Like x86 CPUs running newer and newer software.