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IQ is a little bit heritable. But there are plenty of things which are very heritable and also not genetic to use as comparisons, like accents or posture or little societal rituals of communication, compared to which IQ is barely heritable at all. And that’s without cracking into memes/tropes/narremes, skills, maths, or other more-abstract inheritance.
Or at least what people are thinking of as “software” is wrong; neuroscience is 100% “hardware”. Can’t expect techbros to understand memetics or iatrogenic illnesses, though, not when they’re fixated on the idea that people with depression/schizophrenia/etc. are having “issues” rather than experiencing society.