First. Let me preface my response with a general statement. Let me state for future reference that I don't need any more gentle prompts to go here, read this, look into this. I don't appreciate the intellectual arrogance, it doesn't look good on anyone... We're all very impressed that you can use words like teleological and so forth, but for the future, you can save the Philosophy 101 vocab quiz for the classroom. Thanks. [/Soap Box Off]
It's not really meant to sound that way. If I assumed that you knew the stuff I was referring to, that would be arrogant too, ne? And to adequately answer your question, I feel I have to refer to it. So, "look into x" is the politest way of doing that that I know.
And I'm not trying to use particularly difficult vocab; it doesn't really occur to me to do that. I just use whatever the appropriate word seems to be.
You're welcome to believe me or not of course; all I can say is that I am sincere.
After reading your sig and previous threads I should have avoided this conversation all together. Humility clearly isn't one of your empathies...
Clearly not; I'm an arrogant SOB. I just try to be a
correct and
kind arrogant SOB who readily admits when he's wrong. Or arrogant.
If it has to resort to "just so" answers in the first place it's fallacious from the start.
If "it" is "trying to explain teleologically what the 'purpose' of evolutionary forces is", then yes you're right.
All you can say is that it has certain possibly adaptive or maladaptive or neutral results. Even a trait being maladaptive doesn't necessarily mean it will die out; it just has to be not maladaptive
enough to kill people off.
So - "why" did humans develop wired-in empathy? *shrug*
"How" - that's answerable, but I don't know the answer since I know very little about the neurological evolution of humans (and haven't seen anyone who does; I don't think the data on which to base it is available... but it'd be an interesting question no doubt).
"That" humans did develop it? Yes, very definitely; if you want details I can point you to a bunch of current research in the matter. It's a very hot topic in neuroscience these days.
Convenient for you that this moral framework of your's lives in a vacuum away from practical effects.

If everyone could be reduced to just a meat machine we'd have a perfect world, but humans often act irrationally within a society, and sometimes for the best. Paging Dr. King...
It doesn't live in a vacuum; I just don't see any way to say what the practical effects "should" be except a priori, and that would be no different than the prescriptive morality that I disagree with.
And if anything, my founding morality on
empathy is the very opposite of treating people like 'meat machines', unlike many other versions of morality.
As for your other comments, you say that humans don't operate in the way I describe. Show me how that's true (except when they are following a commandment a priori, e.g. theologically, that overrides what their empathy would decide) and I'll be happy to amend my theory.
Unlike prescriptive morality, I don't say that there is an 'ideal' morality - I'm neutral about that, since I see it as an axiom about which people disagree. I just say that
if everybody had more empathy for their neighbors,
then you would get more cooperative behaviors, and
therefore (assuming at least a certain amount of non-zero-sum in the world) things would get better for everyone.
I just step short of saying that there is some reason things "should" get better for everyone - that would be axiomatic. I think it's a good idea yeah, but that's because that happens to be my axiom; I don't insist that anyone else share it.
I didn't claim anywhere that that is
currently true; indeed, group psychology everywhere acts against it, by increasing in-group empathy at the expense of out-group empathy. I do claim that this effect could be mitigated by changes in the methods of raising kids and various other social training (mostly implicit), and if it were done, there would be significant resulting changes in social psych with profound practical consequences.