polytropos:
But this does not imply that the explanation is not reductive. As Peter Plato has noted, wetness is a human sensation. Water feels wet to us. And this is explicable by other properties of water: what we call wetness feels the way it does because of the specific heat of water, its cohesion, and its liquidity, which all can be explained in terms of the molecular structure of water (which in turn can be explained by the electronegativities of oxygen and hydrogen, etc.).
That is describing the wetness as a property of the
water molecules. And it cannot be reduced to the properties of oxygen and hydrogen
atoms by themselves. Heavy water or deuterium oxide is also composed of oxygen and hydrogen atoms, and its properties are quite different from “regular” water. The same old water molecules have different properties based upon their temperature, too.
Molecules composed of carbon atoms will have different properties based upon the interconnection of the atoms. The properties are contingent upon the covalent bonds of the carbon atoms
AND also the arrangement of the atoms, forming the molecules. There are certain properties of diamonds which are very different from the properties of graphite, and the molecules contain the same carbon atoms – with different arrangement. If you say that the
arrangement is not a
physical object, and as such the properties need some “immaterial” (name removed by moderator)ut as well, then I will agree. But I have already stated that the materialistic worldview does not deny “immaterial” aspects, it only questions the “supernatural” non-explanations.
Truly it is tiring to explain this over and over again. Many times the composite of the simpler forms acquire special properties which cannot be reduced to the
raw properties of the composing materials. The significance of this is obvious. In most cases it is impossible to reduce the properties of a composite structure to its parts. You asked what kind of “theoretical” explanation can be given on solely materialistic grounds. The answer is: “we extrapolate from the zillions of actual examples where there are new, emergent properties, which cannot be reduced to the lower level”. And we look at the actual experiments and see the interconnection between the electro-chemical states of the brain cells and the “thoughts” of the person.
polytropos:
As far as thinking goes, I am bringing it up because it is commonly held that minds think and computers don’t.
“Commonly held”, my little “donkey”. “Thinking” is information processing. Animals also “think”, though not necessarily in an abstract manner, but many of them can even
learn. Observe the rats in a maze. Observe higher apes, “who” can learn sign language, and can communicate with humans, exhibiting a certain level of consciousness. Computers also exhibit the same property, there are evolving, learning algorithms. Just ponder Watson, the computer, which could beat the smartest, best Jeopardy champions. To answer those questions needed a kind of thinking that we call generalizing, grasping the “meaning” of the questions. If that is not “thinking”, I don’t know what is. Chess programs running on simple PC can beat the living daylight of the world’s chess-champion. You may object that these processes are all “brute-force”, that they “only” emulate the “actual” thinking of humans, but that would be a weak argument. The
method of how one reaches a correct answer is not relevant. You may know the answer from the “top of your head”, or you may look it up in a reference book.
If the difference between some “original” and its “copy” cannot be told apart then it is meaningless to even ask: “what is the difference”?
polytropos:
Even if you could show that computers are an example where alternate laws “emerge” in a virtual world (or whatever), that would be insufficient to show that the entirely different set of phenomena - free will, consciousness, etc. - of the mind are no longer problematic.
They are “problematic” in the actual details, but not conceptually.
polytropos:
The properties of water do owe to the properties of individual water molecules, which do owe to the properties of hydrogen and oxygen atoms. They do “emerge,” but not in a way that precludes reductionism.
I hope that reading what I wrote above will show you that this is incorrect. If you still don’t see it, grab a piece of graphite and a piece of diamond, and “use” them. Can you cut a piece of wood with graphite? Can you write on a piece of paper with a diamond?