Will Bouwman wrote: ↑Wed Jul 31, 2024 8:13 am
Immanuel Can wrote: ↑Tue Jul 30, 2024 2:21 pm
Will Bouwman wrote: ↑Tue Jul 30, 2024 8:50 am...the evidence for a physical brain is the same as for an ideal brain.
It's not, actually. Idealism has to assume the existence of the real, in order to account for the existence of any non-hallucinogenic/mystical
ideas or
perceptions, and to distinguish the
idea from
reality.
What you don't understand is that to some idealists, ideas
are reality.
I completely understand that. Do you understand the implication, Will? It implies there is something else that is not-ideas.
That might seem counterintuitive to you, so let me see if I can explain. Let's suppose that everything was made out of water...you, me, the walls, the sky, stars, galaxies...everything, without exception. Now let's suppose that there isn't even a membrane between all the things that exist that is not also made of nothing but water. The entirety of the universe flows together into one undifferentiated thing, with not even one object, line, or dot to make anything at all different from anything else.
In such a universe, what "exists"? Nothing exists. Astonishingly, we can even say that
water itself doesn't "exist," because there's nothing to make a difference between "water" and "not-water." And the
sine qua non of existence is that there has to be at least one other thing in existence for something to actually "exist."
So let's take out "water," now, and speak of "ideas." All is "ideas."
If all is "ideas," then nothing exists. Only if there is something that is not-ideas will even the concept "ideas" be something that can exist. So Idealism has to be an affirmation not just of the real existence of ideas, but of the real existence of something not-ideas. If it's total, it's Mysticism; and then it decays immediately into both incoherence and non-existence...which explains why, for example, in Buddhism, Nirvana is not conceived of as a "place" but as a state of "non-being." It's getting off the wheel of existence, of
samsara, by being liquidated into the universal.
That's a brain-stretcher, maybe; but I'm sure you can get it.
Immanuel Can wrote: ↑Tue Jul 30, 2024 2:21 pmBut Physicalism is of a different kind; it recognizes ONLY physical reality as real, and simply denies any evidence that ideation has any real-world effect.
Like idealists, physicalists don't all agree on every detail; most admit that explaining how our thoughts arise from matter is a problem, some propose solutions, but very few, some epiphenomenalists perhaps, deny "any evidence that ideation has any real-world effect."
And yet, the minute they include "ideas" as a genuine initiator of causal chains, they're really no longer Physicalists. What they think themselves to be becomes moot...they've abandoned the faith of Physicialism, which is to assert that there are NO non-physical causes.
I never promised you, Will, that all Physicalists were consistent. They're not. They're actually logically
incapable of being consistent, since even the most ardent among them still has to get up in the morning and live life. So by their actions, they all betray that they believe in their own cognition, and on their own decisions, and in the possibility of volition, and on mind, identity, consciousness...and dare we say it...even morality, as if these things are determinative of what happens to them, and have real effects in the physical world. But none of that can make sense with Physicalism.