What is it like to be a bat?

Can we just all admit there has basically been no real progress made to the mind-body problem. They all rest on metaphysical axioms of which no one has any proof of. Physicalism is about as plausible as solipsism.

Exhibit a

> Nagel begins by assuming that "conscious experience is a widespread phenomenon" present in many animals (particularly mammals), even though it is "difficult to say [...] what provides evidence of it".

> Physicalism is about as plausible as solipsism.

Physicalism is an ontological assertion that is almost certainly true, and is adhered to by nearly all scientists and most philosophers of mind. Solipsism is an ontological assertion that could only possibly be true for one person, and is generally dismissed. They are at opposite ends of the plausibility scale.

One big problem with physicalism is that many alleged arguments in its favor are nothing of the sort. Any argument for physicalism that refers to neurological observation is invalid. Physicalism claims that all mental events can be reduced to physical events. But you cannot look at physical events to prove this. No matter the detail in which you describe a physical event, you can't use this to prove, or even argue in favor of, the thesis that all mental events can be reduced to the physical.

It's like describing the inside of a house in very great detail, and then using this to argue that there's nothing outside the house. The method is explicitly limiting its scope to the inside of the house, so can say nothing about what's outside, for or against. Same with physicalism: most arguments in its favor limit their method to looking at the physical, so in practice say nothing about whether this is all there is.

You're making a number of unsupported assertions. There's a massive amount of literature in support of physicalism. And it's a far cry from "there's no proof of x" to "x is invalid". No metaphysical stance can be proved.

> Same with physicalism: most arguments in its favor limit their method to looking at the physical, so in practice say nothing about whether this is all there is.

This is simply wrong ... there are very strong arguments that, when we're looking at mental events, we are looking at the physical. To say that arguments for physicalism are limited to looking at the physical is a circular argument that presupposes that physicalism is wrong. The arguments for physicalism absolutely are not based at looking at a limited set of things, they are logical arguments that there's no way to escape being physical ... certainly Descartes' dualism is long dead due to the interaction problem -- mental states must be physical in order to be acted upon or act upon the physical. The alternatives are ad hoc nonsense like Chalmers' "bridging laws" that posit that there's a mental world that is kept in tight sync with the physical world by these "bridging laws" that have no description or explanation or reason to believe exist.

Whoheartedly agree. I think what they're stressing though if I'm understanding correctly, is we do kind of start in a Cartesian space, and branch out via inferences to the presumption of an external world. And, from a certain philosophical perspective, one could point to that and insist that at any moment that connection could be the weak link that brings all of epistemology crashing down. We could get unhooked from the simulation, so to speak, open our real eyes, and witness a new world with new bedrock alternatives to our notions of causality, qualia, and so on.

I don't believe any of that to be true, but I think that's kind of the point of that argument. I do think we start from that Cartesian starting place, but once we know enough about the external world to know that we're a part of it, and can explain our mind in terms of it, it effectively shifts the foundation, so that our mental states are grounded in empirical reality rather than the other way around.

See their comment just above where they say "I'm afraid the physicalist position is absolutely impossible." ... it's the worst argued rubbish imaginable.