# Solipsism - Is the Mind All that Exists?
**URL:** https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865
**Category:** Metaphysics & Epistemology
**Created:** [July 18, 2026, 2:28am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865 "2026-07-18T02:28:59Z")
**Posts on this page:** 15
**Page:** 3
### Author:  [@PatternChaser](https://www.thephilosophyforum.com/u/PatternChaser)
#### Post date: [July 28, 2026, 11:55am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/41 "2026-07-28T11:55:30Z")
> [@WhoKnows](#):
>
> Perhaps it is a case of one overall mind and uncountable minds within that?
Welcome, @WhoKnows, to our dance! đ
I think the whole idea of solipsism is that one mind is all there is. That the Universe comprises _only_ that one thing�
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### Author:  [@PatternChaser](https://www.thephilosophyforum.com/u/PatternChaser)
#### Post date: [July 28, 2026, 11:57am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/42 "2026-07-28T11:57:46Z")
> [@jkop](#):
>
> The alleged mind canât meaningfully think that itâs the only thing that existsâŚ
It doesnât need to. It only needs to **be** âthe only thing that existsâ, I think. đ¤
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### Author:  [@WhoKnows](https://www.thephilosophyforum.com/u/WhoKnows)
#### Post date: [July 28, 2026, 2:19pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/43 "2026-07-28T14:19:57Z")
Thanks for the welcome @ **[PatternChaser](https://www.thephilosophyforum.com/u/patternchaser)**
There are varying types of Solipsism.
All appear to be centered on oneâs own âsureness of existenceâ and I think the problem with it is that it doesnât account for anyoneâs elseâs mindfulness and thus is not even human centric but only self-centric.
I can understand the idea of Solipsism perhaps being true ONLY from the pov of a Source Mind, whereby that mind creates formations which it can inhabit in order to produce the illusion of others, and this universe being one of perhaps multitude universes.
This would signify that we humans are all part of this overall mindfield but not any one of us being the central mind that creates the illusion of âothersââŚ
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### Author:  [@Materialist](https://www.thephilosophyforum.com/u/Materialist)
#### Post date: [July 28, 2026, 2:49pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/44 "2026-07-28T14:49:44Z")
> [@PatternChaser](#):
>
> Doesnât any âlogical possibilityâ warrant being taken seriously?
Itâs impossible to take ALL logical possibilities seriously. People entertain possibilities that pique their interest, which is fine - but the motivation is not just âitâs logically possibleâ. Solipsism is like that.
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### Author:  [@PatternChaser](https://www.thephilosophyforum.com/u/PatternChaser)
#### Post date: [July 28, 2026, 3:19pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/45 "2026-07-28T15:19:12Z")
> [@Materialist](#):
>
> > [@PatternChaser](#):
> >
> > Doesnât any âlogical possibilityâ warrant being taken seriously?
>
> **Itâs impossible to take ALL logical possibilities seriously.** People entertain possibilities that pique their interest, which is fine - but the motivation is not just âitâs logically possibleâ.
Itâs âimpossibleâ? Well, I try my best. đ Although to consider âallâ possibilities might be beyond any human! 𤣠But within my finititude (?!), I do try my best. That which is possible, and has not (yet?) been refuted or falsified, remains possible, and therefore available for serious consideration, if we have a mind toâŚ
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### Author:  [@jkop](https://www.thephilosophyforum.com/u/jkop)
#### Post date: [July 28, 2026, 5:16pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/46 "2026-07-28T17:16:17Z")
> [@PatternChaser](#):
>
> > [@jkop](#):
> >
> > The alleged mind canât meaningfully think that itâs the only thing that existsâŚ
>
> It doesnât need to. It only needs to **be** âthe only thing that existsâ, I think.
It needs to be the only thing that exists for the claim to be true. But the truth conditions are unclear when the words are used across two different realities (supposedly with different truth conditions).
We canât meaningfully say that the imaginary dog Goofy is the only thing that exists. Whether itâs possible in a fictional reality is beside the point when weâre using words whose meanings refer to a factual reality.
Likewise, we canât meaningfully say that a mind is the only thing that exists merely because itâs logically possible in a different reality. The words are used under different truth conditions.
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### Author:  [@Existism](https://www.thephilosophyforum.com/u/Existism)
#### Post date: [July 28, 2026, 8:23pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/47 "2026-07-28T20:23:25Z")
> [@jkop](#):
>
> Not even the brain activity from which the mind could arise
I mean not necessarily, I think. You could have a brain in an empty void of spacetime and the reality we perceive just be a dreamlike state.
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### Author:  [@jkop](https://www.thephilosophyforum.com/u/jkop)
#### Post date: [July 29, 2026, 6:02am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/48 "2026-07-29T06:02:16Z")
> [@Existism](#):
>
> You could have a brain in an empty void of spacetime and the reality we perceive just be a dreamlike state.
Sure, in a fictional reality where a brain is not a biological organ etc.
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### Author:  [@Tom\_Storm](https://www.thephilosophyforum.com/u/Tom_Storm)
#### Post date: [July 29, 2026, 6:33am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/49 "2026-07-29T06:33:15Z")
> [@WhoKnows](#):
>
> I can understand the idea of Solipsism perhaps being true ONLY from the pov of a Source Mind, whereby that mind creates formations which it can inhabit in order to produce the illusion of others, and this universe being one of perhaps multitude universes.
> This would signify that we humans are all part of this overall mindfield but not any one of us being the central mind that creates the illusion of âothersââŚ
Yes. isnât this similar to Kastrupâs idealism with one great non-metacognative mind of which we are all in his words, dissociated alters?
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### Author:  [@WhoKnows](https://www.thephilosophyforum.com/u/WhoKnows)
#### Post date: [July 29, 2026, 6:59am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/50 "2026-07-29T06:59:49Z")
> [@Tom\_Storm](#):
>
> Yes. isnât this similar to Kastrupâs idealism with one great non-metacognative mind of which we are all in his words, dissociated alters?
True that. I didnât know of anyone else working with this idea. A quick ai overview shows me Kastrupâs idealism is much the way I have learned to think about things, mainly through my own experience since my late teensâŚ
I havenât encountered anything which seriously challenges the concept.
One thing I will add is that - yes - while the blank slate experience is what causes the disassociation, it neednât be permanent. There are degrees of reconnection and recognitionâŚ
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### Author:  [@Tom\_Storm](https://www.thephilosophyforum.com/u/Tom_Storm)
#### Post date: [July 29, 2026, 7:35am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/51 "2026-07-29T07:35:26Z")
> [@WhoKnows](#):
>
> I havenât encountered anything which seriously challenges the concept.
I enjoy Kastrupâs model although I donât think it can be demonstrated to be true.
When you think about it, Vedantic traditions and even some forms of Christian Neoplatonism emphasise our underlying unity with God. âWe are all oneâ that kind of thing. You can see how this naturally leads to the idea that our apparent separateness is ultimately an illusion and that, at some deeper level, we are manifestations of the same underlying reality.
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### Author:  [@PatternChaser](https://www.thephilosophyforum.com/u/PatternChaser)
#### Post date: [July 29, 2026, 1:08pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/52 "2026-07-29T13:08:50Z")
> [@jkop](#):
>
> > [@PatternChaser](#):
> >
> > > [@jkop](#):
> > >
> > > The alleged mind canât meaningfully think that itâs the only thing that existsâŚ
> >
> > It doesnât need to. It only needs to **be** âthe only thing that existsâ, I think.
>
> It needs to be the only thing that exists for the claim to be true.
Yes, it does. But I commented only that the âalleged mindâ need not â_think_ that itâs the only thing that existsâ, as long as it **IS** the only thing that exists.
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### Author:  [@jkop](https://www.thephilosophyforum.com/u/jkop)
#### Post date: [July 30, 2026, 8:30am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/53 "2026-07-30T08:30:55Z")
Iâd say its existence is unknowable and therefore irrelevant. All we have is the claim, and it consists of words whose meanings are constrained by their causal history and ordinary use. But the claim denies the ordinary uses of the words âmindâ and âexistâ.
A âmindâ without a cause supposedly âexistsâ without sufficient reason, but thatâs arguably not what the words âmindâ and âexistâ mean.
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### Author:  [@PatternChaser](https://www.thephilosophyforum.com/u/PatternChaser)
#### Post date: [July 30, 2026, 11:49am UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/54 "2026-07-30T11:49:18Z")
> [@jkop](#):
>
> Iâd say its existence is unknowable and therefore irrelevant.
There are (very) many things in our lives that are âunknowableâ, but we seem to manage. Many of them do NOT seem âirrelevantâ to me⌠đ¤ đ
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### Author:  [@WhoKnows](https://www.thephilosophyforum.com/u/WhoKnows)
#### Post date: [July 30, 2026, 8:44pm UTC](https://www.thephilosophyforum.com/t/solipsism-is-the-mind-all-that-exists/1865/55 "2026-07-30T20:44:13Z")
[quote=âTom\_Storm, post:51, topic:1865â]
> I enjoy Kastrupâs model although I donât think it can be demonstrated to be true.
Nothing in particular, I agree. ButâŚperhaps when we look at many things, these point to that most likely being the caseâŚ
> When you think about it, Vedantic traditions and even some forms of Christian Neoplatonism emphasise our underlying unity with God. âWe are all oneâ that kind of thing.
Yes. Given our individuate status, such concepts are difficult to integrate into personal perspective. âWe are all oneâ becomes an acknowledgment for those who come to that realisation through whatever means they do so. Perhaps still thin on the ground, but active nonethelessâŚ
> You can see how this naturally leads to the idea that our apparent separateness is ultimately an illusion and that, at some deeper level, we are manifestations of the same underlying reality.
And - to be fair - âsome deeper levelâ is a terrifying possibility for all of us who naturally begin at the Blank Slate default and the âstruggleâ to remain wilfully ignorant about such concepts, is real for many - and given the usual gate-kept alternatives on offer, who can blame them?
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