Questions tagged [reality]

The tag has no usage guidance, but it has a tag wiki.

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Can we create the Matrix?

Can we fully simulate the reality for a Brain in the Vat (BIV)? For example i clone myself and connect the clone's brain to a very sophisticated computer, which simulates a part of the universe (for ...
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1answer
52 views

Why are simulated realities labeled as fake/unreal? [on hold]

I mean, they obviously are real: They exist. For example, flight simulators exist and can be executed on any computer. People might argue that this is because they do not physically exist since they ...
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Is Wheeler's “It from Bit”/“Participatory Universe” and the Multiverse related?

Did physicist John Archibald Wheeler propose the existence of multiple universes through his "It from Bit" or "Participatory Universe Principle"? Is the multiverse related to Wheeler's ideas? https://...
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1answer
175 views

Examples of theories that assume the existence of an “External Reality”?

In this paper written by physicist Max Tegmark (https://arxiv.org/pdf/0704.0646.pdf) it talks about "External Reality Hypothesis". Specifically, he says: Although many physicists subscribe to the ...
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1answer
46 views

Is there a reason to know? [closed]

I am going to talk about the necessity of the reason to know by talking about the nature of spacetime, and therefore, of our nature. I'm not sure whether this is specific enough for StackExchange, but ...
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Mathematical Universe

I have a beginner question on the type of claims this book or similar theories make. That book claims that universe is math structure. I just want to clarify if I correctly understood his goal: Does ...
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90 views

The paradox of comprehension

If it can be known it cannot be communicated. Seemingly Gorgias held an ability to be communicated as intrinsic to the reality of a concept. And why not? Since for a solipsist there would be no ...
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1answer
165 views

Would truly random events be strictly equivalent to events without a cause?

There are a couple of questions (one, another) about this topic, and as I was thinking about this for a while, I started wondering whether there has been any systematic research into this that raises ...
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Have any thinkers applied empiricism to the dreaming and deep sleep states?

The Mandukya Upanishad is a philosophical text found in the Vedas, which are among the most important scriptures of Hinduism. Here is what V. Subrahmanya Iyer says in a foreword to a translation of ...
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3answers
177 views

If we assume logic is correct, does it imply that our consciousness proccesses real information?

[major edits] Even if our consciousness is an illusion (even in the sense Denett suggests), the mere fact we see some information flowing across the universe means there is at least something that ...
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4answers
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Does the history of our concept of reality, tell us something about Reality?

Whether looking at a human maturing or the progress of civilization, the idea about what Reality is, keeps on changing. And mostly it changes toward the more complex, more elusive, more difficult to ...
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1answer
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What is our mental version of the “real world” based on our interpretation of sensory input, called?

I was working from the basis that reality is reality, and our senses interpret it, and then our feelings are an interpretation into "mind language" of what our senses are reporting, and then with each ...
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What are some important essays/philosophical views on experiencing things objectively? [closed]

I'm looking for some names/essays/philosophers on the topic of objective reality. Questions like, "Can we experience anything objectively?" and, "Is there an objective reality?" Anyone have any ...
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2answers
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Does one's perception of reality affect reality?

When taking in a situation, how much does the perception and predisposition to certain feelings (anger, anxeity, etc) as well as all the various enviroment inputs, like how one was raised, the things ...
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2answers
2k views

If there are infinite realities, do realities exist in which there are no infinite realities?

I don't have any experience with physics. I am just very interested to know whether or not this might be possible.
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0answers
437 views

Critique of Plato's theory of Forms [closed]

I'm new to philosophical studies, my background is in mathematics. I've just read some of Aristotle's Metaphysics today, and would like critique on a brief argument I wrote against Plato's Forms ...
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5answers
225 views

How can we be certain that we cannot be certain?

I read a lot about people saying that it is impossible to be certain about anything with 100% certainty, but that means that this rule in and of itself must be true 100%. I mean the rule that "we ...
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3answers
160 views

Plato's cave in reality

Does anyone know the system we live in? Is it something abstract like that described in the movie The Matrix? It exists. Why does it cost others their lives like Socrates? Lastly, do philosophers ...
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3answers
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Is symmetry real?

Ask almost anyone, and they'll hold up their hands, put them together and say "there you go!" Except, your hands aren't really symmetrical. In fact every "symmetry" I can think of suffers from this '...
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Imagination versus reality [closed]

How can I know of something that happened billions of years ago if I cannot even recall what happened just a day before I was born? Just wondering.
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3answers
303 views

Can science prove that the earth is not flat?

I've heard Neil deGrasse Tyson and other important scientists say that mature science does not rely on our senses, but all explanations I read about the roundness of earth are sense-based: How a ship ...
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4answers
128 views

Making a computer simulation therefore being in a computer simulation?

Suppose we were to make a perfect computer simulation of our own world (granted, the Heisenberg uncertainty principle prevents this so consider it to be mostly, and not exactly, like our world). The ...
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2answers
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Can we infer the rarity of sapience in the universe by looking at the rarity of the universe itself?

This is similar to the anthropic principle, where we can make certain claims by looking at the conclusion: our existence. We can see that our universe is huge and therefore rare. A smaller universe ...
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Does Reality change when theory change?

I was going to include a caveat to prove a premise: to show that truth has become more subjective and then proceeding from older to newer theories of truth, I would cite a survey showing how ...
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2answers
146 views

Is there a special language for expressing subjective idealism?

Subjective idealism is the monistic metaphysical doctrine that only minds and mental contents exist. It entails and is generally identified or associated with immaterialism, the doctrine that material ...
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0answers
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On the nature of reality from different scientific views [closed]

I apologize from many imprecisions that you will find both in the grammatic and in the ideas. Close your eyes and then reopen them. So: how does the universe, the experience, emerge? Then, we can ...
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If we live in a simulated world, doesn't there have to be a first world that's real?

There are people who believe we live in a world, simulated on a computer. That computer must have been built in either another computer-generated world or a real world (by which I mean a non-simulated ...
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1answer
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Has any philosopher claimed that reality is a simulation, and the evil genius wants us to stay alive, in order to explain what seems like a miracle? [closed]

Has any philosopher claimed that reality is a simulation, and the evil genius wants us to stay alive, in order for that philosopher to explain what seems like a miracle? Would anyone ever admit to ...
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1answer
144 views

Is reality really “nothing but a hallucination”?

I asked this a few minutes ago on physics.stackexchange and they redirected me here This question relates to the premise put forth in this TED talk, that reality is nothing but a shared hallucination:...
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On the nature of reality

On the last times of our history there have been lot of discoveries in neuroscience and physics-chemistry. Just to remember relativity and quantum mechanics, and how the brain is not only a device to ...
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4answers
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What makes Humans different from a chemical computer?

Are we all robots? Is our DNA the 0's and 1's of computer code? Are we an advanced computer system, with instead of keyboard and mouse input... input from our senses. Our database being our brain ...
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2answers
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Did David Deutsch really disprove the Simulation Hypothesis?

In The Fabric of Reality (1997) by David Deutsch, he says: Imagine a computer built to render every possible Virtual Reality. Suppose all possible environments produced by this generator can be ...
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2answers
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Are there any certainties besides “Cogito, ergo sum”?

Descartes said, "Cogito, ergo sum(I think, therefore I am)". I agree with him on the fact that this is the only thing that we can ever truly know for sure. Is there anyone who could tell me if there ...
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Can we be Boltzmann brains? Or, how can we be sure there is no conspiracy about the past?

The way things are traditionally presented about time, there is the present, the past is fixed, and the future is open. The second law of thermodynamics is invoked. But how can we be so sure the past ...
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Does it matter possessing knowledge about the Universe if it is going to end?

To be specific, I'm referring to physical reality. Moreover, this question might seem awkward at first glimpse. Well, it does not appear that there are any meaningful relations between the end of the ...
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3answers
231 views

Is it possible to be 100% certain of the existence of reality?

I don't really understand why some philosophers claim that it's impossible to be absolutely certain of anything except my own consciousness. Isn't that absurd? Personally I believe that this kind of ...
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2answers
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Infinite realities: Theoretically if the sun burned out or if all resources were used up, in another universe could it have not happened at all?

This is assuming that infinite realities exist. I have no physics or philosophy background, I am writing a science fiction novel. That being said, please dumb down your answers for me.
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12answers
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Why is the complex number an integral part of physical reality?

In modern physics, the quantum wave distribution function necessarily uses complex numbers to represent itself. If physics defines the physical reality, then what we are saying by the statement above ...
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4answers
502 views

Is there a philosophical principle stating that everything that can be imagined can possibly / must necessarily exist?

Is there a philosophical notion that stipulates or proposes one of the following statements? Everything that can be imagined could also possibly exist. Everything that can be imagined must necessarily ...
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2answers
147 views

Is truth objective or pragmatic? Is it possible to have anything else than an opinion? [closed]

People used to believe truth existed as a provable concept. We now accept we can disprove things, and what we know is approximate. Once you accept the pragmatic, this works, it has consequences that ...
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3answers
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Skepticism towards Nirvana, Moksha

Doesn't the Experience Machine thought experiment by Robert Nozick refute the idea of Nirvana and Moksha?
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4answers
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Grounds for morality in subjective idealistic reality?

In objective reality we are all sharing the same physical world, thus our actions affect other real beings, laying some grounds for morality, at the very least the "do onto others" and its invert. ...
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5answers
2k views

Is Objective Reality really just the Subjective Agreement of a given group?

The famous quote "Perception is Reality" can lead to solipsism as a philosophy - that perhaps "I" am the only being that exists, and "reality" is only what I am creating it to be through my own ...
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7answers
226 views

Is it possible to visualize higher dimensional space?

This might seem like a trivial question, but it may be more complicated than it seems. I'm wondering if it would be technically possible to visualize higher dimensional space. By that I mean seeing ...
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2answers
246 views

Two questions about logic/mathematics

1: Why do we say that there can't be other logics/mathematics than those we have? 2: Logic and maths are independent of reality. Then, if we have invented a logic/math based on reality, would it be ...
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5answers
460 views

Is it necessary/possible to prove that facts exist?

I am having a debate with someone on the internets. He claims that there are no such things as facts absent interpretation. For example, if I see a ball dropping, it's not a fact that a ball is ...
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5answers
277 views

Do our eyes show us truth?

Do our eyes show us the truth or, does our eyesight contrive for us some approximation? Can we even show that what we experience is more than a belief, even as much as an approximation? If I feel the ...
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2answers
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To what extent can reality be described as 'culturally constructed'?

I'm having this argument with my gf about the relevance of cultural constructivism to the real world. She argues that everything is 'culturally constructed' aka nothing exists outside the boundaries ...
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Does Einstein's local realism in quantum mechanics imply superdeterminism?

Einstein insisted that nature is locally real, which is also know as counterfactual defeniteness and means that results of experiments are predetermined. But, if everything is predetermined in every ...
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Why must physics (empirical measurement) be consistent?

In this TEDx talk, Physicist and Nobel Laureate George Smoot claims (around 19:00) that inconsistency in measurements of the universe imply either that our universe is not real, that is, that we live ...