Your concept of what “nature” is does not make sense to me. By “morality is natural”, I mean we humans have natural tendencies. At some point, and this is the part that doesn’t make sense, you separate humans from nature, like this:
You do recognize natural tendencies, as do I. Call them instincts, inherited traits, the result of evolution, the body/brain interacting with the environment for billions of years, all of those work. That’s why we study apes and learn about ourselves. We can study all life forms and learn about ourselves. We can take it into the world of pure math. There is no line where something is “human” and not “nature”, or “nature” and not “math”. When you do that, you start to deconstruct language in a way that makes the idea of language unusable.
So this statement:
Doesn’t not make sense to me.
It speaks of morality as some external force that would impose itself on nature. I’m saying morality is part of nature. You can try to write a formula for it, but I have asked that of you before and you have only said that it’s possible, but you haven’t produced one. It might be possible, and can understand how you can make a good case for it to be possible, but we, with our puny little brains and short lifespans, haven’t written that formula yet. Sci-Fi is rife with stories of what happens when you try to do that.
“Morality is Natural” is not an argument against “nature functions purely mathematically”. The two are perfectly compatible. A field of energy sprang into existence with some matter scattered around in it, and it has kept expanding ever since. The early particles combined with others and that process continued and humans evolved from all of that. We had this ability, this trait, of doing if/then scenarios with everything. We used it to spread across the planet faster than any other creature, making us feel pretty special. We’ve made a bit of a mess since then, while also developing the ability to detect threats from space and maybe save the planet (I’m thinking of an asteroid).
That choice, to look up and see if there is something we can do to make the future better vs taking whatever is easily grasped that makes us feel good in the moment, is what I’m calling morality. You can explain those thoughts and actions in quite a lot of detail with math, but you can’t explain it completely, and you can’t write a formula to figure out what the right choice is for everyone in every minute. You can spend some time thinking about why we have what seem like choices, and you can look back to the beginning and see there was some force, something that made those early particles combine, but you can’t put our language onto that because those particles didn’t have our brains like ours. You could say it’s a primitive survival instinct, but what would that mean?
If we can’t talk about what is “good”, without acknowledging every philosophical and theoretical thought about how things happen or what we are, then bad things will continue to happen.