No third thing assumed.
Physicalists want to say "mind is an illusion" or "mind is an abstraction". I am simply saying "both mind and matter fall into this category", and declare the ONE real thing to be noumenal. So there is no "third thing". In reality, there is only ONE thing. It just doesn't happen to be matter.
Do you understand my position any better now?
Geoff
So when materialists say "all of reality is one kind of stuff", or idealists say "all of reality is one kind of stuff", and you say "all of reality is one kind of stuff", you are all saying the same thing? Then why do you disagree with them?
Hammy does not claim that what we perceive as being material is not, in fact, real--he just says it is not material. Still there, different stuff. He is not denying anything. A materialist does not claim that what we experience as being mental is not there--it is just not mental. Still there, different stuff. Neither is making any claims that eliminate part of what is real. Now, you say there is just "one thing". What is more, it is not a "third thing". So basically, then, you agree with both sides. You just want the convenience of being able to use dualistic language and make a real distinction between material and ideal, claim that materialists are insane for thinking everything is one stuff, and perhaps make the same claim about idealists (can't recall that specific claim at the moment, though).
A materialist not made of straw says something like "reality appears to be made of one kind of stuff. For our purposes, we will call it matter, treat it like matter is real, and see how far that assumption gets us." They recognise that it is an assumption. Hammy also, to the best of my understanding, does this, except that his axiomatic assumption is that thought is what is real. He (sometimes) recognises this as an assumption, too.
Which is more honest--to admit that your choice of monism is an assumption, or to circularly infer a third alternative and claim that it is no assumption, but fact?