I wonder if Pearl thinks that RL replicates his do-calculus under the hood, or if that's an innovation we're missing.
Biological agents have are seemingly able to derive goals from both internal and external signals, and are able to use affordances (aka what is usable through their environment/body) to accomplish those goals. These affordances are not predefined and the space of possible usages for any given tool is practically infinite (a screwdriver can tighten a screw, or pry open a door [0]). Biological evolution also doesn't actually have goal persay, its more of "what works sticks". Whereas evolutionary/learning algorithms have a defined objective function.
The big differentiator seems to lie in the fact that biological agents are able to engage in a semiotic or meaning-making process where given an internal state and its affordances the agent is able to make movements that betters it's state in the future without explicitly being told.
[0] https://www.frontiersin.org/articles/10.3389/fevo.2021.80628... (title: How Organisms Come to Know the World: Fundamental Limits on Artificial General Intelligence)
The question is whether us humans would be left out to compete for resources, AI machines may at some point become able to out-compete us for resources. Do we really need to satisfy our desire to play God?
Another less than perfect possibility to come out of this could be AI based war machines - goal driven self sufficient entities that have two goals, to survive and to kill.
Furthermore, if a machine has no wants/needs then it won't take any action at all. It will just stand there and won't even experiment to find the good or bad outcomes.
If it is indifferent to all consequences, you are back to square 1, so no, consequences are not the missing magic. Consequences are a function that transform one "want" into a different "want".
Does a cloud want to rain? Or does it just rain because it obeys physical laws as part of a huge complex system?
Do I want to have a cup of coffee? Or a job? Or a girlfriend? Or am I likewise just doing things because my atoms obey physical laws as part of a huge complex system?
This is not a scientific question. It is a teleological question. That doesn't make it less important, on the contrary. It's the answers to teleological questions which make anything important, including the scientific questions which happen to be important.
So the question is not, "what can we do to make a machine want things", it's "When should we ascribe what a machine does to its own wants".
And my answer is "never". Not as long as it's a product of our wants, which they always will be.
But I can't say that the physical processes in me are in any fundamental way different, than physical processes anywhere else in nature. Most are deterministic, some may be inscrutable, and some may even be random or unknowable - but all those things can be said about the weather, too. You cannot derive my wants from my capabilities (unless you're prepared you ascribe wants to clouds as well, I guess).
But you're again missing the point. It feels to me like I have choices. I believe you're right, I have choices. You're kicking down an open door when you're arguing this.
What I'm telling you is that I didn't come to this belief empirically. And indeed I believe it is impossible to justify empirically.
Everything about natural intelligence derives from the organism's wants - we want food, we want safety, we want sleep, we want to reproduce, etc etc - even fidgeting comes down to wanting physical comfort. Every single motion and action derives from want.
As long as machines are simply executing instructions and have no want of their own, I don't see how the intelligence gap will ever truly be crossed. Why would a machine ever take any action at all on its own without want?