I believe that quantum events marks the end of physical explanation in regards to the origin of our universe. Hence a theory of everything is unachievable without philosophy. But will this lead to people having more respect for Metaphysics? Perhaps you disagree with my initial statement about cosmological science. What do you think?
A “theory” in the scientific sense, is an equivocation outside of science. A “philosophical theory” is an informal concept, maybe something we would call a “conjecture”, maybe even a “proof” as a syllogism. But a “theory” in the scientific sense makes demands that cannot be met by philosophy, or metaphysical musings. For one thing, it has to make testable predictions. It has to be falsifiable, at least in principle, for another.
It was always thus, though, and one cannot understand the scientific method without understanding its severe limitations. Science is not equipped to address ultimate questions, or metaphysics. It’s just the search for natural explanations for natural phenomena. As it turns out, that leaves plenty of interesting work to be done in science.
Which means that a “theory of everything” is severely limited in what it can achieve, epistemologically. There is no objective “feedback loop” for metaphysics, which means it cannot possibly get the epistemic “respect” that science has. Science has nature itself as a feedback loop, an objective means to test and detect errors, and validate positive performance. There is no such “calibrator” for metaphysics, so we are lost, left to muse about dangling conjectures.
The more we know about science, the more starkly clear it becomes how little we know, and how little we
can know in terms of metaphysics. Our metaphysical questions will never go away, but the prospects for improved epistemology in metaphysics are dim. If the esteem for metaphysics is going to grow, it will mean that our demand for performative knowledge has waned.
-Touchstone