I don't know if roboticists have tried to duplicate human throwing motions with robots from first principles; maybe I'll go and look into that. But it's probably heinously complex and the least urgent because we've figured out so many better ways to launch projectiles.

i forget where i read about it but there's a staggering amount of advanced triangulation and calculus that our brains do in the instant before we throw something at a target and we just kind of do it all the time without a second thought

But we're I'm going with it is this: The things that most define us as distinct from other extant animals — our locomotion, the depth and complexity of our intraspecies communication, and, strangely enough, our ability to throw things — are things that are trivial to us but deceptively difficult.