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Doubt disproves solipsism.

Shawn May 07, 2021 at 21:44 7900 views 27 comments
Solipsism simply cannot be true if the solipsist can doubt.

Prove me wrong.

Comments (27)

Shawn May 07, 2021 at 23:04 #532934
To say that one is a solipsist is to affirm that one is one and the same with the world, à la Wittgenstein.

Hence, indubitable certainty or epistemic solipsism where no doubt can arise.

Therefore a solipsist cannot doubt.
Fooloso4 May 07, 2021 at 23:29 #532951
Quoting Shawn
Solipsism simply cannot be true if the solipsist can doubt.

Prove me wrong.


I could but I'm tired of arguing with myself and ending up doubting myself.
Shawn May 07, 2021 at 23:30 #532954
Quoting Fooloso4
I could but I'm tired of arguing with myself and ending up doubting myself.


For all that exists, what is it that you are doubting as a solipsist. Are you really a solipsist?
Fooloso4 May 07, 2021 at 23:32 #532957
Of course.
Shawn May 07, 2021 at 23:32 #532961
Reply to Fooloso4

Either way, particular or universal, the self is the ultimate truth for the solipsist in His or Her own World, epistemically.

So, you cannot be doubting, surely?
Fooloso4 May 07, 2021 at 23:34 #532963
Quoting Shawn
Either way, particular or universal, the self is the ultimate truth for the solipsist in His or Her own World, epistemically.


I tell myself this all the time, but no one listens. And by no one, of course, I mean me.
Shawn May 07, 2021 at 23:35 #532964
Quoting Fooloso4
I tell myself this all the time, but no one listens. And by no one, of course, I mean me.


Then how can you doubt yourself as a solipsist when you are the same as the World? Or does this world expand when you doubt and can learn new things?

By inference aren't you epistemically certain of any particular of what you are, being a solipsist?
Fooloso4 May 07, 2021 at 23:42 #532970
Reply to Shawn

Sorry Shawn, I was joking. Taking the position that I can only be sure of my own existence, everything I said, beginning with the fact that I responded to you contradicts solipsism.
Shawn May 07, 2021 at 23:44 #532972
Quoting Fooloso4
Sorry Shawn, I was joking. Taking the position that I can only be sure of my own existence, everything I said, beginning with the fact that I responded to you contradicts solipsism.


Well, yes it's all fun and games. But, I'm interested in the notion that doubt creates a bedrock (Wittgenstein/Descartes) where knowledge can begin. Therefore, the thread.

Do you agree that epistemically, this is the shortest path to disproving solipsism since the solipsist cannot logically doubt?
Shawn May 07, 2021 at 23:51 #532976
@Banno, can a solipsist logically doubt?
180 Proof May 08, 2021 at 07:02 #533096
Reply to Shawn A solipsist doubts that there are other minds.
Adam Hilstad May 08, 2021 at 08:45 #533111
The fundamentally tessellating nature of the understanding disproves solipsism—once we hit the edge of solipsistic understanding, we’re warped directly back to a reality with others.
baker May 08, 2021 at 11:37 #533168
Reply to Shawn Do you know any solipsists? Exactly.
Shawn May 08, 2021 at 18:27 #533285
Quoting 180 Proof
A solipsist doubts that there are other minds.


Not true, given a bona fide definition and scope of the issue. Intentionally there's no doubt. Extensionally there should be none.
Shawn May 08, 2021 at 18:54 #533295
Reply to 180 Proof

Just doing a second reading, and I suppose this should read:

A solipsist knows there are no other minds.
180 Proof May 08, 2021 at 19:29 #533304
Reply to Shawn Makes no sense. If only your mind is real nothing could count as evidence for or against any claim or belief. Thus, a solipsist can only suspend judging as true or false (i.e. doubt) or simply ignore any prospective counterfactual. A solipsist is merely a metaphysical neurotic.
Shawn May 08, 2021 at 20:22 #533337
Quoting 180 Proof
Makes no sense. If only your mind is real nothing could count as evidence for or again any claim or belief. Thus, a solipsist can only suspend judging as true or false (i.e. doubt) or simply ignore any prospective counterfactual. A solipsist is a metaphysical neurotic.


More of the sort of epistemically, they are certain of everything going around them, to the best of their knowledge.
180 Proof May 08, 2021 at 20:44 #533352
Reply to Shawn Nothing is "going on around them" just their thoughts; and without any mind-exterior (mind-independent) corroborating metrics implied by solipsism, a solipsist cannot believe in anyway distinguishable to herself from disbelieving; she only daydreams without cognitive or epistemic content. (See Witty's "Private Language Argument" for starters.)
Shawn May 08, 2021 at 21:32 #533368
Quoting 180 Proof
solipsist cannot believe in anyway distinguishable to herself from disbelieving; she only daydreams without cognitive or epistemic content.


Well, a person during the REM phase of dreaming is quite solipsistic, don't you think? And in even in a higher state of consciousness during a dream phase where the dreamer knows he or she is dreaming, as in what is called a "lucid" dream, that person is as close to what one may empirically describe as solipsism as can be.
180 Proof May 08, 2021 at 22:59 #533392
Reply to Shawn Except solipsism is a commitment to a 'metaphysical fantasy' and not itself a mental state. Perhaps REM sleep / lucid dreaming "seems" solipsistic but they need not "seem" so in every case.
Banno May 08, 2021 at 23:15 #533401
Reply to Shawn I'm expected to reply here, but have nothing to say. "The solipsist achieves no practical advantage from advancing his views".
Shawn May 09, 2021 at 00:12 #533430
Quoting 180 Proof
Except solipsism is a commitment to a 'metaphysical fantasy' and not itself a mental state. Perhaps REM sleep / lucid dreaming "seems" solipsistic but they need not "seem" so in every case.


Enabled by REM sleep, perhaps?

Epistemic solipsism seems to me to be a viable position to hold in regards to the indubitability of the solipsist's world, where he or she alone is the observer of the observed.
Shawn May 09, 2021 at 00:13 #533431
Quoting Banno
"The solipsist achieves no practical advantage from advancing his views".


Very true. But, technically, we have some idea of what solipsism may mean by the mere fact that we experience a world like a solipsist would every night when we dream. Ya, no?
180 Proof May 09, 2021 at 01:51 #533468
Reply to Shawn "Indubitability" of seeming? Okay. "Epistemic solipsism?" I refer you again to Witty's "Private Language Argument" which makes the case that any discourse which is not public – not accessible by others – is nonsensical (e.g. babytalk), which includes "epistemic solipsism". The eye is not in its own field of vision, the hand can grasp anything except itself; other eyes and hands are entailed respectively in order to see eyes and to grasp hands. Touching involuntarily touches back – "solipsism", as Samuel Johnson quipped, it's refuted thus.
Shawn May 09, 2021 at 02:33 #533484
Quoting 180 Proof
"Epistemic solipsism?" I refer you again to Witty's "Private Language Argument" which makes the case that any discourse which is not public – not accessible by others – is nonsensical (e.g. babytalk), which includes "epistemic solipsism". The eye is not in its own field of vision, the hand can grasp anything except itself; other eyes and hands are entailed respectively in order to see eyes and to grasp hands. Touching involuntarily touches back – "solipsism", as Samuel Johnson quipped, it's refuted thus.


Thanks for the comment on the PLA. In like here's one:

P.M.S Hacker provides the following:

What the solipsist means, and is correct in thinking, is that the world and life are one, that man is the microcosm, that I am my world. These equations... express a doctrine which I shall call Transcendental Solipsism. They involve a belief in the transcendental ideality of time. ... Wittgenstein thought that his transcendental idealist doctrines, though profoundly important, are literally inexpressible.

— Hacker, Insight and Illusion, op cit., n. 3, pp. 99-100.
Shawn May 09, 2021 at 02:38 #533488
And something else that's pretty neat from the Tractarian:

5.64, Wittgenstein asserts that “Here it can be seen that solipsism, when its implications are followed out strictly, coincides with pure realism. The self of solipsism shrinks to a point without extension, and there remains the reality co-ordinated with it.”
baker May 09, 2021 at 08:16 #533537
Quoting Shawn
And something else that's pretty neat from the Tractarian:

5.64, Wittgenstein asserts that “Here it can be seen that solipsism, when its implications are followed out strictly, coincides with pure realism. The self of solipsism shrinks to a point without extension, and there remains the reality co-ordinated with it.”

Yes. Neither the solipsist nor the realist have any notion of "perspective" (other than in the sense of 'wrong/faulty', as in "People who see things from their own perspective don't see things as they really are, but only from their narrow, wrong viewpoint").
A sentence like "Things are the way I see them" is unintelligible to a realist, and if the solipsist is also a realist, then to such a solipsist as well. IOW, it's impossible to get through to such people and to meaningfully communicate with them, at least as far as metadiscussion goes.