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Solipsism ("// ("" listen); from "Latin solus, meaning 'alone', and ipse, meaning 'self') is the "philosophical idea that only one's own "mind is sure to exist. As an "epistemological position, solipsism holds that "knowledge of anything outside one's own mind is unsure; the "external world and "other minds cannot be known and might not exist outside the mind. As a "metaphysical position, solipsism goes further to the conclusion that the world and other minds do not exist.
There are varying degrees of solipsism that parallel the varying degrees of "skepticism:
"Metaphysical solipsism is a variety of solipsism. Based on a philosophy of subjective "idealism, metaphysical solipsists maintain that the "self is the only existing reality and that all other realities, including the external "world and other persons, are representations of that self, and have no independent existence.["citation needed] There are weaker["citation needed] versions of metaphysical solipsism, such as Caspar Hare's "egocentric presentism (or "perspectival realism), in which other people are conscious but their experiences are simply not present.["citation needed]
Epistemological solipsism is the variety of "idealism according to which only the directly accessible mental contents of the solipsistic philosopher can be known. The existence of an external world is regarded as an unresolvable question rather than actually false. Further, one cannot also be certain as to what extent the external world exists independently of one's mind. For instance, it may be that a God-like being controls the sensations received by one's brain, making it appear as if there is an external world when most of it (excluding the God-like being and oneself) is false. However, the point remains that epistemological solipsists consider this an "unresolvable" question.
Epistemological solipsists claim that "realism requires the question: assuming that there is a universe independent of an agent's mind and knowable only through the agent's "senses, how is the existence of this independent universe to be scientifically studied?["citation needed] If a person sets up a camera to photograph the moon when he is not looking at it, then at best he determines that there is an image of the moon in the camera when he eventually looks at it. Logically, this does not assure that the moon itself (or even the camera) existed at the time the photograph is supposed to have been taken. To establish that it is an image of an independent moon requires many other assumptions that amount to "begging the question.["citation needed]
Methodological solipsism is an "agnostic variant of solipsism["citation needed]. It exists in opposition to the strict "epistemological requirements for ""Knowledge" (e.g. the requirement that knowledge must be certain). It still entertains the points that "any induction is fallible and that we may be "brains in vats["citation needed]. Methodological solipsism sometimes goes even further to say that even what we perceive as the brain is actually part of the external world, for it is only through our senses that we can see or feel the mind. Only the existence of thoughts is known for certain.
Importantly, methodological solipsists do not intend to conclude that the stronger forms of solipsism are actually true. They simply emphasize that justifications of an external world must be founded on indisputable facts about their own consciousness. The methodological solipsist believes that subjective impressions ("Empiricism) or innate knowledge ("Rationalism) are the sole possible or proper starting point for philosophical construction. Often methodological solipsism is not held as a belief system, but rather used as a "thought experiment to assist "skepticism (e.g. Descartes' "cartesian skepticism).["citation needed]
Denial of material existence, in itself, does not constitute solipsism.
A feature of the metaphysical solipsistic "worldview is "the denial of the existence of other minds. Since "personal experiences are private and "ineffable, another being's experience can be known only by "analogy.
Philosophers try to build knowledge on more than an inference or analogy. The failure of "Descartes' epistemological enterprise brought to popularity the idea that all "certain knowledge may go no further than ""I think; therefore I exist" without providing any real details about the nature of the "I" that has been proven to exist["citation needed].
The theory of solipsism also merits close examination because it relates to three widely held philosophical presuppositions, each itself fundamental and wide-ranging in importance:
To expand on this a little further, the conceptual problem here is that the previous assumes mind or consciousness (which are attributes) can exist independent of some entity having this capability, i.e., that an attribute of an existant can exist apart from the existant itself. If one admits to the existence of an independent entity (e.g., your brain) having that attribute, the door is open.
3. The experience of a given person is necessarily private to that person.
Some people hold that, while it cannot be proven that anything independent of one's mind exists, the point that solipsism makes is irrelevant. This is because, whether the world as we perceive it exists independently or not, we cannot escape this perception (except via death), hence it is best to act assuming that the world is independent of our minds. For example, if one committed a crime, one is likely to be punished, causing potential distress to oneself even if the world was not independent of one's mind; therefore, it is in one's best interests and is most convenient to assume the world exists independently of one's mind.
There is also the issue of plausibility to consider. If one is the only mind in existence, then one is maintaining that one's mind alone created all of which one is apparently aware. This includes the symphonies of Beethoven, the works of Shakespeare, all of mathematics and science (which one can access via one's phantom libraries), etc. Somewhat implausible.
Much of the point of the Sophists was to show that "objective" knowledge was a literal impossibility. (See also comments credited to "Protagoras of Abdera).
The foundations of solipsism are in turn the foundations of the view that the individual's understanding of any and all psychological concepts (thinking, willing, perceiving, etc.) is accomplished by making an analogy with his or her own mental states; i.e., by abstraction from inner experience. And this view, or some variant of it, has been influential in philosophy since "Descartes elevated the search for incontrovertible certainty to the status of the primary goal of "epistemology, whilst also elevating epistemology to "first philosophy".["citation needed]
"George Berkeley's arguments against "materialism in favour of "idealism provide the solipsist with a number of arguments not found in Descartes. While Descartes defends ontological "dualism, thus accepting the existence of a material world ("res extensa) as well as immaterial minds ("res cogitans) and God, Berkeley denies the existence of matter but not minds, of which God is one.
Solipsism is often introduced in the context of relating it to pathological psychological conditions.["citation needed] Austrian psychiatrist "Sigmund Freud stated that other minds are not known, but only inferred to exist. He stated "consciousness makes each of us aware only of his own states of mind; that other people, too, possess a consciousness is an inference which we draw by analogy from their observable utterances and actions, in order to make this behavior of theirs intelligible to us. (It would no doubt be psychologically more correct to put it in this way: that without any special reflection we attribute to everyone else our own constitution and therefore our consciousness as well, and that this identification is a sine qua non of understanding)."
"Solipsism syndrome is a dissociative mental state. It is only incidentally related to philosophical solipsism. The lack of ability to prove the existence of other minds does not, in itself, cause the psychiatric condition of detachment from reality.
Some "developmental psychologists believe that "infants are solipsistic, and that eventually children "infer that others have experiences much like theirs and reject solipsism (see "Infant cognitive development).
To discuss consequences clearly, an alternative is required: solipsism as opposed to what? Solipsism is opposed to all forms of realism["dubious ] and many forms of "idealism (insofar as they claim that there is something outside the idealist's mind, which is itself another mind, or mental in nature). Realism in a minimal sense, that there is an external universe is most likely not observationally distinct from solipsism. The objections to solipsism therefore have a theoretical rather than an empirical thrust.
Solipsists may view their own prosocial behaviors as having a more solid foundation than the incoherent prosociality of other philosophies. Indeed, they may be more prosocial because they view other individuals as actually being a part of themselves. Furthermore, the joy and suffering arising from empathy are just as real as the joy and suffering arising from physical sensation. They view their own existence as human beings to be just as speculative as the existence of anyone else as a human being. Epistemological solipsists may argue that these philosophical distinctions are irrelevant since the professed prosocial knowledge of others is an illusion.
The British philosopher "Alan Watts wrote extensively about this subject.
One of the most fundamental debates in philosophy concerns the "true" nature of the world—whether it is some ethereal plane of ideas, or a reality of atomic particles and energy. "Materialism posits a real 'world out there,' as well as in and through us, that can be sensed—seen, heard, tasted, touched and felt, sometimes with prosthetic technologies corresponding to human sensing organs. (Materialists do not claim that human senses or even their prosthetics can, even when collected, sense the totality of the 'universe'; simply that what they collectively cannot sense cannot in any way be known to us.)
Materialists do not find this a useful way of thinking about the ontology and ontogeny of ideas, but we might say that from a materialist perspective pushed to a logical extreme communicable to an idealist (an "Away Team" perspective), ideas are ultimately reducible to a physically communicated, organically, socially and environmentally embedded 'brain state'. While reflexive existence is not considered by materialists to be experienced on the atomic level, the individual's physical and mental experiences are ultimately reducible to the unique tripartite combination of environmentally determined, genetically determined, and randomly determined interactions of firing neurons and atomic collisions.
As a correlative, the only thing that dreams and hallucinations prove are that some neurons can reorganize and 'clean house' 'on break' (often reforming according to emergent, prominent or uncanny cultural themes), misfire, and malfunction. But for materialists, ideas have no primary reality as essences separate from our physical existence. From a materialist "Home Team" perspective, ideas are also social (rather than purely biological), and formed and transmitted and modified through the interactions between social organisms and their social and physical environments. This materialist perspective informs scientific methodology, insofar as that methodology assumes that humans have no access to omniscience and that therefore human knowledge is an ongoing, collective enterprise that is best produced via scientific and logical conventions adjusted specifically for material human capacities and limitations.["citation needed]
Modern "Idealists, on the other hand, believe that the mind and its thoughts are the only true things that exist. This is the reverse of what is sometimes called "classical idealism or, somewhat confusingly, "Platonic idealism due to the influence of Plato's "Theory of Forms (εἶδος eidos or ἰδέα idea) which were not products of our thinking. The material world is ephemeral, but a perfect triangle or "beauty" is eternal. Religious thinking tends to be some form of idealism, as God usually becomes the highest ideal (such as "Neoplatonism). On this scale, solipsism can be classed as "idealism. Thoughts and concepts are all that exist, and furthermore, only the solipsist's own thoughts and consciousness exist. The so-called "reality" is nothing more than an idea that the solipsist has (perhaps unconsciously) created.
There is another option: the belief that both ideals and "reality" exist. "Dualists commonly argue that the distinction between the "mind (or '"ideas') and matter can be proven by employing "Leibniz' principle of the "identity of indiscernibles which states that if two things share all exactly the same qualities, then they must be identical, as in indistinguishable from each other and therefore one and the same thing. Dualists then attempt to identify attributes of mind that are lacked by matter (such as privacy or intentionality) or vice versa (such as having a certain temperature or electrical charge). One notable application of the identity of indiscernibles was by "René Descartes in his "Meditations on First Philosophy. Descartes concluded that he could not doubt the existence of himself (the famous "cogito ergo sum argument), but that he could doubt the (separate) existence of his body. From this, he inferred that the person Descartes must not be identical to the Descartes body since one possessed a characteristic that the other did not: namely, it could be known to exist. Solipsism agrees with Descartes in this aspect, and goes further: only things that can be known to exist for sure should be considered to exist. The Descartes body could only exist as an idea in the mind of the person Descartes. Descartes and dualism aim to prove the actual existence of reality as opposed to a phantom existence (as well as the existence of God in Descartes' case), using the realm of ideas merely as a starting point, but solipsism usually finds those further arguments unconvincing. The solipsist instead proposes that his/her own unconscious is the author of all seemingly "external" events from "reality".
"The World as Will and Representation is the central work of "Arthur Schopenhauer. Schopenhauer saw the human will as our one window to the world behind the representation, the Kantian thing-in-itself. He believed, therefore, that we could gain knowledge about the thing-in-itself, something Kant said was impossible, since the rest of the relationship between representation and thing-in-itself could be understood by "analogy as the relationship between human will and human body.
The idealist philosopher "George Berkeley argued that physical objects do not exist independently of the mind that perceives them. An item truly exists only as long as it is observed; otherwise, it is not only meaningless but simply nonexistent. The observer and the observed are one. Berkeley does attempt to show things can and do exist apart from the human mind and our perception, but only because there is an all-encompassing Mind in which all "ideas" are perceived – in other words, God, who observes all. Solipsism agrees that nothing exists outside of perception, but would argue that Berkeley falls prey to the "egocentric predicament – he can only make his own observations, and thus cannot be truly sure that this God or other people exist to observe "reality". The solipsist would say it is better to disregard the unreliable observations of alleged other people and rely upon the immediate certainty of one's own perceptions.
"Rationalism is the philosophical position that "truth is best discovered by the use of reasoning and "logic rather than by the use of the senses (see Plato's "theory of Forms). Solipsism is also skeptical of "sense-data.
The theory of solipsism crosses over with the theory of the "philosophical zombie in that all other seemingly conscious beings actually lack true consciousness, instead they only display traits of consciousness to the observer, who is the only conscious being there is.
One critical test is nevertheless to consider the induction from experience that the externally observable world does not seem, at first approach, to be directly manipulable purely by mental energies alone. One can indirectly manipulate the world through the medium of the physical body, but it seems impossible to do so through pure thought (e.g. via "psychokinesis). It might be argued that if the external world were merely a construct of a single consciousness, i.e. the self, it could then follow that the external world should be somehow directly manipulable by that consciousness, and if it is not, then solipsism is false. An argument against this states the notion that such manipulation may be possible but barred from the conscious self via the subconscious self, a 'locked' portion of the mind that is still nevertheless the same mind. Lucid dreaming might be considered an example of when these locked portions of the subconscious become accessible. An argument against this might be brought up in asking why the subconscious of the mind would be locked, also the access, to the autonomous ('locked') portions of the mind during the lucid dreaming, is obviously much different (for instance: is relatively more transient) than the access to autonomous regions of the perceived nature.
The method of the typical scientist is materialist: they first assume that the external world exists and can be known. But the scientific method, in the sense of a predict-observe-modify loop, does not require the assumption of an external world. A solipsist may perform a psychological test on themselves, to discern the nature of the reality in their mind - however "David Deutsch uses this fact to counter-argue: "outer parts" of solipsist, behave independently so they are independent for "narrowly" defined (conscious) self. A solipsist's investigations may not be proper science, however, since it would not include the co-operative and communitarian aspects of scientific inquiry that normally serve to diminish bias.
Solipsism is a form of "logical "minimalism. Many people are intuitively unconvinced of the nonexistence of the external world from the basic arguments of solipsism, but a solid proof of its existence is not available at present. The central assertion of solipsism rests on the nonexistence of such a proof, and strong solipsism (as opposed to weak solipsism) asserts that no such proof can be made. In this sense, solipsism is logically related to "agnosticism in religion: the distinction between believing you do not know, and believing you could not have known.
However, minimality (or "parsimony) is not the only logical virtue. A common misapprehension of "Occam's Razor has it that the simpler theory is always the best. In fact, the principle is that the simpler of two theories of equal "explanatory power is to be preferred. In other words: additional "entities" can pay their way with enhanced explanatory power. So the realist can claim that, while his "world view is more complex, it is more satisfying as an explanation.
Many ancient Indian philosophies["which?] advocate the notion that all matter (and thus humans) is subtly interconnected with not only one's immediate surroundings, but with "everything in the universe. They["who?] claim that the perception of absolutely independent beings and things is an illusion that leads to confusion and dissatisfaction—"Saṃsāra. The solipsist, however, would be more likely to put one's self (or merely their own mind) in the center, as the only item of reality, with all other beings (and perhaps even their own body) in reality illusions.["citation needed]
Some solipsists believe that some tenets of "eastern philosophies are similar to solipsism. "Taoism["citation needed] and several interpretations of "Buddhism, especially "Mahayana, teach that the distinction between "self and "universe is arbitrary, merely a habit of perception and an artifact of language. This view identifies the unity of self and universe as the ultimate reality. Mahayana holds that each individual has 'Buddha Mind': an all-pervading "awareness that fills their entire existence, including the 'external' world. This need not imply that one's mind is all that exists, as with solipsism, but rather that the distinction between "I am" and "it is" is ultimately unnecessary, and a burden that, paradoxically, gives rise to an illusory sense of permanence and independence—that "separate" self which suffers and dies. In this sense, Mahayana reflects "Meister Eckhart's "The eye with which I see God is the same with which God sees me. My eye and God's eye is one eye, and one sight, and one knowledge, and one love."
The earliest reference to Solipsism in "Hindu philosophy is found in the "Brihadaranyaka Upanishad, dated to early 1st millennium BCE. The "Upanishad holds the mind to be the only god and all actions in the universe are thought to be a result of the mind assuming infinite forms. After the development of distinct schools of "Indian philosophy, "Advaita Vedanta and Samkhya schools are thought to have originated concepts similar to solipsism.["citation needed]
"Advaita is one of the six most known Hindu philosophical systems, and literally means ""non-duality". Its first great consolidator was "Adi Shankaracharya, who continued the work of some of the "Upanishadic teachers, and that of his teacher's teacher "Gaudapada. By using various arguments, such as the analysis of the three states of experience—wakefulness, dream, and deep sleep, he established the singular reality of "Brahman, in which Brahman, the universe and the "Atman or the Self, were one and the same.
One who sees everything as nothing but the Self, and the Self in everything one sees, such a seer withdraws from nothing. For the enlightened, all that exists is nothing but the Self, so how could any suffering or delusion continue for those who know this oneness?— "Ishopanishad: sloka 6, 7
The concept of the "Self in the philosophy of Advaita, could be interpreted as solipsism. However, the "transhuman, theological implications of the Self in Advaita protect it from true solipsism as is found in the west. Similarly, the "Vedantic text "Yogavasistha, escapes charge of solipsism because the real "I" is thought to be nothing but the "absolute whole looked at through a particular unique point of interest.
Advaita is also thought to strongly diverge from solipsism in that, the former is a system of exploration of one's mind in order to finally understand the nature of the self and attain complete knowledge. The unity of existence is said to be directly experienced and understood at the end as a part of complete knowledge. On the other hand, solipsism posits the non-existence of the external void right at the beginning, and says that no further inquiry is possible.["citation needed]
"Samkhya philosophy, which is sometimes seen as the basis of "Yogic thought, adopts a view that matter exists independently of individual minds. Representation of an object in an individual mind is held to be a mental approximation of the object in the external world. Therefore, Samkhya chooses representational "realism over epistemological solipsism. Having established this distinction between the external world and the mind, Samkhya posits the existence of two metaphysical realities "Prakriti (matter) and "Purusha (consciousness).
Some misinterpretations of Buddhism assert that external reality is an illusion, and sometimes this position is [mis]understood as metaphysical solipsism. "Buddhist philosophy, though, generally holds that the mind and external phenomena are both equally transient, and that they arise from each other. The mind cannot exist without external phenomena, nor can external phenomena exist without the mind. This relation is known as ""dependent arising" (pratityasamutpada).
The Buddha stated, "Within this fathom long body is the world, the origin of the world, the cessation of the world and the path leading to the cessation of the world". Whilst not rejecting the occurrence of external phenomena, the Buddha focused on the illusion created within the mind of the perceiver by the process of ascribing permanence to impermanent phenomena, satisfaction to unsatisfying experiences, and a sense of reality to things that were effectively insubstantial.
"Mahayana Buddhism also challenges as illusion the idea that one can experience an 'objective' reality independent of individual perceiving minds.
From the standpoint of "Prasangika (a branch of "Madhyamaka thought), external objects do exist, but are devoid of any type of inherent identity: "Just as objects of mind do not exist [inherently], mind also does not exist [inherently]". In other words, even though a chair may physically exist, individuals can only experience it through the medium of their own mind, each with their own literal point of view. Therefore, an independent, purely 'objective' reality could never be experienced.
The "Yogacara (sometimes translated as "Mind only") school of Buddhist philosophy contends that all human experience is constructed by mind. Some later representatives of one Yogacara subschool (Prajnakaragupta, "Ratnakīrti) propounded a form of idealism that has been interpreted as solipsism. A view of this sort is contained in the 11th-century treatise of Ratnakirti, "Refutation of the existence of other minds" (Santanantara dusana), which provides a philosophical refutation of external mindstreams from the Buddhist standpoint of "ultimate truth (as distinct from the perspective of everyday reality).
In addition to this, the "Bardo Thodol, Tibet's famous book of the dead, repeatedly states that all of reality is a figment of one's perception, although this occurs within the "Bardo" realm (post-mortem). For instance, within the sixth part of section titled "The Root Verses of the Six Bardos", there appears the following line: "May I recognize whatever appeareth as being mine own thought-forms"; there are many lines in similar ideal.
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