Well...to me, whether it's mental or physical, any changes that ensures our advancement as a species would be evolution...micro or macro. According to the good Mr. Webster, evolution would be:
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4 a : the historical development of a biological group (as a race or species)
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Whether it's becoming taller, living longer, or the changing of our mental abilities, I call it the same thing. Sure, humans are still humans at their core, but the ideas we have as humans don't necessarily have much to do with our core traits. On a primal level, we're really no different than any other animals. We eat, sleep, deficate, and procreate. Humans just like to kid themselves that there's a whole lot more to it. Is that likeness a coincidence? Maybe. Then again, maybe not.