I still disagree on the latter part. Our OS is largely cobbled together by our brains on the fly, and so everyone's is quite unique and based on their life experience.
Ofc, it's a spectrum. And as we evolve we go from being more nature based to being more nurture based. But I'd say we're a long way off from being more nurture than nature, given that 100% nurture would be a being fully capable of self design. Most people can't even stop themselves from procrastinating (like me right now). We can't even manage to coexist with the planet, when we know it's going to destroy everything when we don't.
If you want to believe that us big great humans are in control of ourselves and unlike those stupid animals we're products of nurture, that's your dopamine hit to take. But based off everything I've seen, the only time we really become our brains is when the the Pre-frontal cortex is engaged and suppresses all the other more instinctual parts of the brain. And even for very smart and/or dedicated people, it's extremely difficult to quiet all natural instincts for any extended length of time.
IMO, we're barely out of the bushes in terms of the path from being beasts of nature to becoming beings of self-design and nurture.
