The moment such a statement is made, it leaves the purely formal domain and enters the empirical one — Wolfgang
Well, no imo because its a description of what the maths says. Its directly analogous to variational principles of least action in physics which don't specifically have empirical content because they are formal tools that are used to describe lots of different things in physics.
https://en.wikipedia.org/wiki/Action_principles
a framework so flexible that any observation can be redescribed post hoc as free-energy minimization. — Wolfgang
But this is the point. Free energy minimization gives you a framework where you can write down the equations describing the conditions for a system to maintain its own existence over time. That might not be interesting for a rock. But I think thats quite interesting for more complicated self-organizing systems. Its a framework for describing what complex self-organizing systems do, like choosing to describe physical systems as following paths of least action.
If organisms truly sought to minimize surprisal, they would remain in dark, stimulus-free environments. — Wolfgang
To avoid this absurdity, the theory must implicitly introduce meaning — assuming that the organism “wants” stimulation, “prefers” survival, or “seeks” adaptation. But these are semantic predicates, not physical ones. Hence, the principle only works by smuggling intentionality through the back door — the very thing it claims to explain. — Wolfgang
False. A system will have wants or preferences or seeks things out because if it doesn't it dies. And the point of FEP is that any system that continues to exist looks like it is modelling its environment. Things like preferences are an inherent part of that model and are necessitated. It comes for free. Nothing is required to be smuggled in.
Hohwy concedes that FEP is better seen as a framework than a theory. — Wolfgang
Yes, and Friston sees it the same way, I have been saying it that too. At the same time brains and what brains do in terms of constructing models and fulfilling the predictions of an organism is clearly a corollary of complicated systems that need extremely complicated forms of self-regulation in order to continue to survive. And we can use more specific, testable models of predictive processing or similar to describe what brains do.
it is a semantic conflation. — Wolfgang
Disagree, it is a rigorous mathematical framework
with provable claims whose central, general claims are provable. Obviously, with regard to brains, it makes no specific predictions. But as a unifying theory of self-organization, it does exactly what it says on the tin, and its impossible for it to be any more precise empirically because the notion of a self-organizing system is far to general to have any specific empirical consequences. Exactly the same for a "general system's theory". Nonetheless, this theory is fundamentally describing in the most general sense what self-organizing systems do, and gives you a formal framework to talk about them which you can flesh out with your own specific models in specific domains.
what they literally mean;
if they are literal, they presuppose an experiencing subject. — Wolfgang
As I've said before, this isn't because theories are invalid. Predictive models to describe neurons are testable and can replicate single neuron responses. They are doing exactly what they should in an effective way.
The issue is you want them to describe something else. And thats fine, but no theory in neuroscience has ever claimed to explain subjective experience, nor do they want to. Thats not the most interesting part of neuroscience.
That is precisely what renders it incoherent. — Wolfgang
Nothing incoherent. Its a mathematical framework you can use as a tool to describe self-organizing systems, and it can be put to effective use for many purposes. This is an interesting one I have cited before:
https://arxiv.org/abs/2502.21217
I take the point that on its own FEP is not a theory of consciousness (and I am talking in the easy sense, NOT about subjectivity), because it is too general, but I think it can have an important role in the hierarchy of different ways, different theories of describing what brains do as living, self-organizing systems. And I think the generality is a positive because it necessarily acknowledges that you will never find strict boundaries or dividing lines between conscious and non-conscious, living and non-living, and I don't think you can have a full account of these things without that acknowledgement.
Edit: spelling and crossing out