In article <
d4380052-66b7-4df4...@googlegroups.com>,
I never claimed they were.
I believe you are wrong in this regard. My understanding of most of the
fine-tuning arguments is that they involve the claim that without the
physical constants in a very narrow range, the range of fundamental
particles we know of could not exist. That would preclude black holes as
much as it would preclude life (someone already brought this up, though
I forget who -- asking you if you were referring to the idea that the
universe was fine-tuned for black holes. I thought the remark simply
went over your head, but it appears you are working under some
misconceptions about the fine-tuning argument).
> Iron on the other hand could be considered to be of interest, as
> the existence of iron would mean the existence of complex chemistry,
So iron would only be of interest because it implies 'complex
chemistry'? Why is complex chemistry important? Why not 'complex
physics' or 'matter and energy' or 'neutrinos' or any other feature of
this universe?
What this really boils down to is the fact that life is important *to
you*, and you therefore ascribe to it some special status in the
universe, but the fine-tuning argument works equally well (i.e. poorly)
for any feature in the universe.
No. I meant that the assumption is incorrect.
Reductionist explanations involve attempting to account for things at
the lowest possible level.
Particle physicists might do this, but that's only because they are
actually looking at the lowest possible level.
On the other hand, a physicist investigating (e.g.) the aerodynamics of
flight or turbulent flow isn't going to even attempt to account for this
things in terms of the interaction of fundamental particles (which is
what methodological reductionism entails).
>
> > > Physicalism does not stipulate that experiencing is an emergent property
> > > (so
> > > some irony in your response there). It just states that reality is a
> > > physical
> > > one.
> >
> > Physicalism might not explicitly state this, but actual evidence
> > certainly points in that direction.
> >
>
> The evidence does not point to physicalism at all.
You misread my sentence. I am claiming that the evidence points to
experience being an emergent property.
The argument for physicalism itself is simply the success of material
explanations combined with the complete absence of evidence for
non-physical processes.
It's not merely my claim. It's pretty much every philosopher I've ever
discussed the issue with's claim.
However, it might be worthwhile to give a detailed explanation because
it might help dispel some of your apparent misconceptions about
physicalism.
Physicalism/Materialism is a form of monism. (n.b. I use the terms
'physicalism' and 'materialism' interchangeably. The only reason I stick
with 'physicalism' for the most part is because that is the term you
used in your prior visits to this group).
Monism is the claim that there exists only a single sort of 'substance'.
But what exactly constitutes a 'substance'? Clearly, iron and hydrogen
are different things, but they ultimately consist of electrons and
nucleons, so they are considered the same.
But electrons, protons, and neutrons are also clearly different things.
However, they are grouped together as matter by virtue of the shared
property of having mass.
What about energy, which would appear to be something very different
from matter? We currently speak of mass-energy, but even prior to
Einstein materialists ('physicalism', as a term, didn't exist back then)
would have considered this to be in the same realm as mass, etc.
Similarly, abstractions like velocity, distance, time, etc. are lumped
together with matter and energy as physical entities.
The reason for considering all of these seemingly disparate entities as
being 'of the same substance' is the fact that they all interact through
a single set of laws. If you take the full set of physical laws, all of
these things are referred to. And while there are physical laws which
may refer to only *some* of these things, all interactions between these
various properties are mediated by the exact same set of physical laws.
Panpsychism is essentially the view that all things in the universe are
endowed with 'mind', and through most of it's history proponents of this
view would have vehemently denied being materialists since 'mind' is the
canonical example of a 'substance' deemed non-material.
Stawson's (Galen, not Peter) panpsychism is essentially the same as
prior versions of panpsychism except that he describes 'mind' as a
*physical* property which all entities possess. The problem with this is
that despite this label he doesn't actually treat it as a physical
property. He doesn't ascribe to this property anything which would make
it subject to physical laws. It has no mass. It has no charge. It
neither exerts nor is acted upon by physical forces. In effect, it is
entirely *irrelevant* from the standpoint of the laws of physics. And
this means that he really *is* treating it as a non-physical property,
just as every other panpsychic has.
Strawson's entire premise is predicated on a fundamental mistake: he
believes that any property which we can ascribe to an entity has to
somehow percolate down to all of its parts. That's clearly not true of
other things (water may be liquid, but no one would claim it consists of
liquid electrons, protons and neutrons, or even of liquid molecules), so
why he is convinced this should be true of consciousness is beyond me.
No materialist I'm aware of would attribute consciousness to atoms or
molecules, or even to much more complex things like individual neurons.
Consciousness is an emergent property of the whole, not a property of
the individual parts.
But, based on past arguments from you, it was clearly the direction you
were heading.
> > > In the same way that it
> > > would be be incoherent to imagine two subsections of a universe which
> > > were
> > > physically identical and yet which had different physics constants.
> > >
> > > *But* as can be seen from the video links I supplied earlier
> >
> > I don't do video links. Videos may be good for entertainment, but they
> > are an incredibly inefficient way of presenting information.
> >
>
> ??? Like video-ing lectures and offering them online is inefficient compared
> to being at the university and having to walk between each one and then wait
> for them to start.
No, like watching videos is incredibly inefficient compared to reading
lecture notes or print publications. The transcript of a one-hour video,
complete with whatever visual aids are needed, can typically be read and
processed in under five minutes. Why spend an hour on it?
Moreover, scientists who make videos make them for laypeople.
Consequently, they tend to be lacking in technical detail. If a student
made a habit of referencing videos rather than articles I would be
singularly unimpressed.
I have seen science documentaries which I have enjoyed, but I watch
those for leisure, not for actual research purposes.
Except that they aren't really differing in a physical feature. You may
be calling it such, but you aren't treating it as such for the reasons I
outline above.
>
>
> > > And it is not
> > > incompatible with physicalism to imagine that feature varying any more
> > > than
> > > it is to imagine the physics constants varying. Because it involves no
> > > contradiction.
> > >
> > > You mentioned the frequency of light reflected by hemoglobin. I assume
> > > that
> > > would be a logical consequence of what are considered to be the known
> > > laws of
> > > physics, that could be deduced a-priori. So to consider it to be
> > > different
> > > given the known laws of physics and the constant values would involve a
> > > logical contradiction. The experience is not something that is a logical
> > > consequence of the known laws of physics
> >
> > But physicalism asserts that this *is* a consequence of the laws of
> > physics just as the reflective properties of iron are a consequence of
> > those laws. IIRC, this was a major issue in our last exchange. You find
> > ways of trying to sneak dualist assumptions into your argument by
> > treating consciousness as being fundamentally different from everything
> > else. You may believe this to be true, but you can't rely on this claim
> > if physicalism is what you are attempting to argue against since you
> > would then be assuming your own conclusion.
> >
>
> Physicalism does not state that the experience is a logical consequence of
> the laws of physics.
Physicalism doesn't claim we currently fully *understand* how
consciousness arises from physical laws. But yes, it does claim that
experience is a necessary consequence of those laws.
> If you disagree give the logical argument for the
> implication.
Premise: All phenomena are ultimately the result of physical
interactions (essentially the definition of materialism)
Premise: We experience things.
Conclusion: Experience must be the result of physical interactions.
> I have not brought up dualism at all, and am not assuming that experiencing
> is any less of a physical feature than any one of the physics constant
> values. If you disagree just point out where I have, else stop lying.
You have not specifically *referred* to dualism. But you are assuming it
simply by claiming that (e.g.) the color of iron is a consequence of
physical laws whereas consciousness is not. That's claiming that
consciousness is not material (just as was the case with Strawson, the
fact that you might label it as material is irrelevant if you aren't
actually treating it as such).
No one is claiming infallibility. The above was snipped because it
wasn't relevant (there you seem to be talking about the possibilities of
different constants varying. I personally am not convinced that this is
even possible, but I will gladly admit to being wrong given the
evidence. Above I am *assuming* said possibility, despite my scepticism
on this point. If I were as intransigent as you seem to imply, then I
would presumably have been unwilling to entertain this).