Ideas never finish evolving, and in a grand sense nothing finishes evolving, unless you consider extinction to be the conclusion of an evolution. Nature goes on, the universe continues, there is no end point where things have reached a perfect evolution.
My parents were busy trying to control my fucked up sisters children, with my dad dumping as much responsibilty for child rearing as possible on my mom, and my mom passively aggressively resenting it. Same way me and my sister were raised. My family's a mess.
There's no referal to superorganism, not sure where you picked that up, just the superorganic. Many people believe different things about what is supernatural, it's inherently vague. Many people believe ghosts are real but they are still refered to as the supernatural.
I'll compare to the concept of human culture being called superorganic, which is an old cultural anthropology concept which can provide a model for critical thinking. We don't understand culture, yet we define it, record it, measure it. Hard to predict, I'll admit. Refering to it as superorganic implies it exists at a higher complexity than we understand. Gravity and many other observational phenomena also exist at a higher compexity than we understand. Thus although you may not like to refer to such things as supernatural, it's not wrong, it's an opinion.
Super- means above, like superimposed. Our lack of understanding means we don't know why it exists. It's above our understanding, even if we know it exists.
Assuming ghosts have been proven to exist, like op stated, but without knowing why, like gravity. Above our understanding of nature, supernatural, given the prefix super- means above.
I think this makes gravity supernatural, we believe it but don't understand it, it's above (super) our understaning of nature. I'm not sure if this it what am axiom refers to, building all our theories on an unknown foundation. So I think ghosts could remain supernatural, we know they exsist, but their exitense is above our natural understanding. I mean, if I define supernatual as meaning above nature.
GF is battling in Baldurs Gate. Karlach is jimmy on the go.