The Universe Exists Because It Has To

  • Thread starter Thread starter Evolver
  • Start date Start date
  • Tags Tags
    Universe
  • #51
debra said:
Not really, I am saying that in an informationally based universe, intelligence is within it (the information that is) and that intelligence can understand its own existence.
An outside entity of some sort is not needed or likely IMO.

I believe it can be proved in the same way that an intelligence 'stuck' in a computer simulation could abstract the truth of its own existence and be correct. Why not?

That scenario can never be proven though. Ideas like brain-in-a-vat or philosophies like Solipsism can never be objective, because any evidence gained would only prove to be an illusion if the scenario were true.
 
Space news on Phys.org
  • #52
I do not see how existence can be a physical property independent of observed qualities. Can you explain that?

If you are saying that the Universe is intrinsically indestructible then that would explain its existence since for the same reason it could never have come into existence. So maybe you are implying that to destroy the Universe is somehow meaningless.
 
  • #53
wofsy said:
I do not see how existence can be a physical property independent of observed qualities. Can you explain that?

If you are saying that the Universe is intrinsically indestructible then that would explain its existence since for the same reason it could never have come into existence. So maybe you are implying that to destroy the Universe is somehow meaningless.

I don't think I am saying that. In fact what you are saying is precisely what I am saying. I'm confused as to what your question is.

I'm saying that there is no ability for the universe not to exist, because that ill-defined concept is a man-made contrivance. We can't speak of things that 'don't exist' because they aren't real... they are concepts. The only thing that's physical about the universe is it's existence. All the laws, everything observable and measurable... every aspect of the universe exists, and for us to assume it could do otherwise is more our ill-perceived concepts than an alternative for the universe.

I think this is actually a less speculative approach to the idea because I make no assumptions about how the universe was created. I simply say it exists and that is an observable fact. You cannot prove anything that 'doesn't exist.'
 
Last edited:
  • #54
Evolver said:
I don't think I am saying that. In fact what you are saying is precisely what I am saying. I'm confused as to what your question is.

I'm saying that there is no ability for the universe not to exist, because that ill-defined concept is a man-made contrivance. We can't speak of things that 'don't exist' because they aren't real... they are concepts. The only thing that's physical about the universe is it's existence. All the laws, everything observable and measurable... every aspect of the universe exists, and for us to assume it could do otherwise is more our ill-perceived concepts than an alternative for the universe.

I think this is actually a less speculative approach to the idea because I make no assumptions about how the universe was created. I simply say it exists and that is an observable fact. You cannot prove anything that 'doesn't exist.'

Well I was just guessing what you meant. I have thought the same thing and find the idea interesting.

My sense is - though I don't know much about philosophy - is that Plato was making the same point in the Phaedo. What do you think?
 
  • #55
wofsy said:
Well I was just guessing what you meant. I have thought the same thing and find the idea interesting.

My sense is - though I don't know much about philosophy - is that Plato was making the same point in the Phaedo. What do you think?

Well, in the Phaedo, Socrates makes speculations about the immortality of the soul, which though his logic touches the same bases... he is assuming that there is such thing as a soul in the first place. That's a matter for a whole other discussion.
 
Last edited:
  • #56
Evolver said:
I'm saying that there is no ability for the universe not to exist, because that ill-defined concept is a man-made contrivance. We can't speak of things that 'don't exist' because they aren't real... they are concepts.
I do not see how you arrive at this logic except circularly.

Who says non-existence requires the presence of man?

Does that mean that polka-dotted ultra-bunnies from the planet Fnord must exist because their non-existence is a man-made concept?
 
  • #57
DaveC426913 said:
I do not see how you arrive at this logic except circularly.

Who says non-existence requires the presence of man?

Does that mean that polka-dotted ultra-bunnies from the planet Fnord must exist because their non-existence is a man-made concept?

Your Fnord Bunnies actually help my hypothesis. I'm saying the universe exists and there is observable evidence for that, I then stop there and cease all assumptions. There is no observable evidence for anything other than an existing universe... including your Fnord bunnies. (however cute they may be)

This is not circular, because it is cutting out guesswork of assuming something came before the universe. It relies solely on observable evidence.
 
  • #58
Evolver said:
Your Fnord Bunnies actually help my hypothesis. I'm saying the universe exists and there is observable evidence for that, and I stop there and cease all assumptions. There is no observable evidence for anything other than an existing universe... including your Fnord bunnies. (however cute they may be)

This is not circular, because it is cutting out guesswork of assuming something came before the universe. It relies solely on observable evidence.

OK, so the universe exists.

What does that have to do with the universe not existing?

If I throw a 2-sided die and it lands on 1, are you telling me that, since it landed on 1, there is no possible way it could have landed on 2 instead?
 
  • #59
DaveC426913 said:
OK, so the universe exists.

What does that have to do with the universe not existing?

If I throw a 2-sided die and it lands on 1, are you telling me that, since it landed on 1, there is no possible way it could have landed on 2 instead?

Well, in essence is that wrong? Yes it could have... but the reality is it didn't. The reality then is that only the 1 was reality. The 2 was simply a possibility.

But my point about the universe is different. I am attempting to point out that there is no proof for something to 'not exist'. Not in the sense that things that 'don't exist' might be real (like your Fnord Bunnies case). But rather, that 'not existing' isn't a real element of any physical part of the universe. Everything we observe and measure does exist. We assume there is an alternative to existence... I am simply cutting off that assumption.
 
Last edited:
  • #60
Evolver said:
We assume there is an alternative to existence... I am simply cutting off that assumption.
Based on what? Why is it not valid?
 
  • #61
DaveC426913 said:
Based on what? Why is it not valid?

I'm not saying it's not valid, but that theory is responsible for finding the proof. The proof that the universe exists is readily available, an alternative proof is not. I am simply applying Occam's Razor to the equation and not adding speculative complexities.
 
  • #63
DaveC426913 said:

That person was referring to a cliched and diluted use of Occam's Razor. I'm not saying nature is necessarily simple. There is very clear evidence that the universe exists (and does so in a very complex way). But to propose any alternative without proof is just as viable as any other alternative. The universe could have been created by giant purple salamanders just as readily as it can be said that it is possible for it to not exist. I only invoke Occam's Razor because saying the universe exists is based on proof. All else is assumption.
 
Last edited by a moderator:
  • #64
Evolver said:
This is an attempt to recognize a base physical property of the universe itself that also describes why it must exist according to this property.

How about a sick twist on Descartes instead?

We are the universe becoming aware of itself [albeit just a tiny part of the universe :biggrin:]
I think, therefore I exist.
 
  • #65
Ivan Seeking said:
How about a sick twist on Descartes instead?

We are the universe becoming aware of itself
I think, therefore I exist.

Sick is your opinion, but I don't go so far as Descartes when he spoke of Solipsist beliefs. Is it wrong to build ideas on previous philosophies and ideas? You are suggesting you've uniquely come up with every idea you've ever had?

Einstein could not have made SR and GR without Newton's previous work (among many others).
 
Last edited:
  • #66
Evolver said:
Well, in the Phaedo, Socrates makes speculations about the immortality of the soul, which though his logic touches the same bases... he is assuming that there is such thing as a soul in the first place. That's a matter for a whole other discussion.

I didn't mean the immortality of the soul per se but the notion of the inability to create new ideas - that they exist immortally because they are indestructible - that all ideation is therefore really memory. When did the Pythagorean theorem become true and when was it false before that?
 
  • #67
wofsy said:
I didn't mean the immortality of the soul per se but the notion of the inability to create new ideas - that they exist immortally because they are indestructible - that all ideation is therefore really memory. When did the Pythagorean theorem become true and when was it false before that?

Well this is getting a bit off topic, but I understand what you're saying. Ideas though, are human constructs, not properties of the universe. They are comprehensions that are understood. The Pythagorean Theorem is a human notion. An observation and way of explaining relations of human ideas. A Euclidean perspective is just a representation of aspects of the universe created for human minds to understand... an analogy to describe what they see around them. It exists only in our minds as a metaphor.

Perhaps treating the universe as anything other than a metaphor is impossible simply by the way in which we observe it. I do have another thread which attempts to address just that: https://www.physicsforums.com/showthread.php?t=368284
 
  • #68
Evolver said:
Well this is getting a bit off topic, but I understand what you're saying. Ideas though, are human constructs, not properties of the universe. They are comprehensions that are understood. The Pythagorean Theorem is a human notion. An observation and way of explaining relations of human ideas. A Euclidean perspective is just a representation of aspects of the universe created for human minds to understand... an analogy to describe what they see around them. It exists only in our minds as a metaphor.

Perhaps treating the universe as anything other than a metaphor is impossible simply by the way in which we observe it. I do have another thread which attempts to address just that: https://www.physicsforums.com/showthread.php?t=368284

If the universe is based on mathematics and logic implemented in information, then the metaphor is largely gone - remains in subjective human judgments I suppose. I am no longer subscribing to the 'we can never know' school of thought. And indeed Pythagoras Theorem was indeed true before he discovered it.

The level at which we abstract the truth varies and the high level abstractions are just that - abstractions. So, we can abstract a human as a mad dance of atoms (and not really human), has some truth I suppose - but its shallow.
At the very low levels the truths are (IMO) mathematical and logical, and I can ask is that an abstraction?

If one wants to say that mathematics and logic are abstractions, then I am forced to agree.

So is mathematics and logic an abstraction of a deeper truth? What is the deeper truth if any?
 
  • #69
then before humans discovered it the Pythagorean theorem was not true - nor was it false. Hmmmm.
 
  • #70
debra said:
I am no longer subscribing to the 'we can never know' school of thought...

...If one wants to say that mathematics and logic are abstractions, then I am forced to agree.

I may be misunderstanding you, but these two statements seem contradictory. Could you please elaborate to help me follow your line of logic?

debra said:
So, we can abstract a human as a mad dance of atoms (and not really human), has some truth I suppose - but its shallow.

Shallow? As in a moral sense? I do not follow. I don't think the universe cares as much about morality as humans do.
 
  • #71
debra said:
So is mathematics and logic an abstraction of a deeper truth? What is the deeper truth if any?

Logical and mathematical relations are simply the way we structure observation.
Top, bottom, left, right, are no different, just more useful in certain situations, than PT.
PT doesn't actually describe anything that exists.

Math is a map, a language, a description, and way of describing, experience.

The source of experience is your deeper truth, but since it is always mediated by subjective experience, as Kant said, its unknowable, except as subjective experience.

Which isn't to say that we can't build a really good map.
 
  • #72
Evolver said:
I may be misunderstanding you, but these two statements seem contradictory. Could you please elaborate to help me follow your line of logic?

Mathematics as a basis for a universe is at a deep level, I am not sure wether it is an abstraction. Humans as a mad dance of atoms is certainly an abstraction, but if anything is not an abstraction it must be mathematics.

But, if someone could come up with an argument to posit that logic and mathematics is an abtraction of some sort, I could be convinced. (I am reading JoeDawq's thread directly above this now...)


Evolver said:
Shallow? As in a moral sense? I do not follow. I don't think the universe cares as much about morality as humans do.

Not in a moral sense, in an intellectual sense.
 
  • #73
JoeDawg said:
Logical and mathematical relations are simply the way we structure observation.
Top, bottom, left, right, are no different, just more useful in certain situations, than PT.
PT doesn't actually describe anything that exists.

Math is a map, a language, a description, and way of describing, experience.

The source of experience is your deeper truth, but since it is always mediated by subjective experience, as Kant said, its unknowable, except as subjective experience.

Which isn't to say that we can't build a really good map.

Subjective - "Yellow is a beautiful color"
Objective - "1+1=2"

Are you saying that 1+1=2 is a human experience?
 
  • #74
debra said:
Subjective - "Yellow is a beautiful color"
Not just subjective, but also a value judgment.
You are basically saying 'yellow is good'.
This is different from saying:
"My hat is yellow" which is also subjective.
The latter is strictly an observation from a certain point of view.
Given that the qualia, yellow, is a product of the mind, it is not in any sense objective.
Although, in the scientific way, observed wavelengths of light can be nominally objective.

Objective is a complicated word, as it has different definitions within different domains.

Objective in science means repeatable and predictable, but it doesn't really deal in TRUTH, science deals with evidence.
Objective in philosophy means independent of mind. This can relate to TRUTH, but some would say that kind of TRUTH is unknowable.
Objective in journalism, means avoiding bias, not advocating or taking a side, just reporting.
Objective - "1+1=2"
Mathematics (even in the scientific sense) is not really objective.
Mathematics is true by definition.
Are you saying that 1+1=2 is a human experience?

It is abstracted from experience, yes.

You can certainly repeat math, but it is deductively consistent, not observationally.
And you can't have math without a mind, since deduction is a kind of reasoning.

As to bias, that gets muddled up with what you decide is worth counting.

This is not to say that math is not reliably consistent, but when you are talking about math, you are dealing with something very different from empirical science and what most people think of as 'objective'.
 
Last edited:
  • #75
JoeDawg said:
1+1=2 ... is abstracted from experience, yes.

You can certainly repeat math, but it is deductively consistent, not observationally.
And you can't have math without a mind, since deduction is a kind of reasoning.

As to bias, that gets muddled up with what you decide is worth counting.

This is not to say that math is not reliably consistent, but when you are talking about math, you are dealing with something very different from empirical science and what most people think of as 'objective'.

1+1=2 - what exactly is the mind abstracting here that is not 'real'? I am interested to know.

"And you can't have math without a mind"
Pythagoras Law, Laws of Physics exist whether there is a human mind or not don't they?
 
  • #76
JoeDawg said:
Logical and mathematical relations are simply the way we structure observation.
Top, bottom, left, right, are no different, just more useful in certain situations, than PT.
PT doesn't actually describe anything that exists.

Math is a map, a language, a description, and way of describing, experience.

The source of experience is your deeper truth, but since it is always mediated by subjective experience, as Kant said, its unknowable, except as subjective experience.

Which isn't to say that we can't build a really good map.

Observation may just be a way to structure mathematics. It gives us a picture of the mathematical world. Reality is more than what we observe - it is something underneath our observation that is mathematical or inseparable from mathematical structures.

To me it is a fallacy to assume a priori that the world is just what we observe.

Math certainly can be used as a language - but it is far more than that and much of it is unrelated to experience. Experience on the other hand, is always related to math. This is because it is the math that is real, the experience fleeting and uncertain.
 
Last edited:
  • #77
wofsy said:
I didn't mean the immortality of the soul per se but the notion of the inability to create new ideas - that they exist immortally because they are indestructible - that all ideation is therefore really memory. When did the Pythagorean theorem become true and when was it false before that?

Why can't the universe be much like a mind and the creation of physical phenomena such as particles much like memory - in the Platonic sense? From this point of view it is not mathematics that is the underpinning of reality but an indestructible substance that forms the world much in the same way as the mind brings ideas into consciousness.

We can be conscious of ideas much in the same way that we can observe empirical phenomena. But we can not be conscious of the mind directly - nor can we observe the world directly.
 
Last edited:
  • #78
debra said:
1+1=2 - what exactly is the mind abstracting here that is not 'real'? I am interested to know.
I'm not saying math, observation, or the universe aren't 'real'. That's a loaded word.
I'm simply distinguishing between them.

We learn early on about sensations, and this allows us to distingish the 'self' from 'everything else'. We then group sensations into objects.
Identity is a first order abstraction.

Then we learn to group similar objects, and observe a flow, a direction; how objects follow one another. These are second order abstractions, the concepts of category and causation.

From these we get our ability to define(describe things that don't exist as observations) and deduce (discover what follows from these definitions), which involve third order abstractions.

Logical deduction doesn't create new information, it merely discovers what is implied by our definitions, or axioms.

Physics and math both feed off of each other and help define each other. Math allows us to explore in great detail the limits of assumptions we make based on observation, and in turn, it gives us new things to look for.
"And you can't have math without a mind"
Pythagoras Law, Laws of Physics exist whether there is a human mind or not don't they?
There are no perfect triangles in the universe, a triangle is an ideal.
The planets do not circle the sun in perfect little ellipses, because they are not perfect spheres, and the sun, and milky way, are not stationary, so the path of each planet is much more complex than an ellipse. If all you wish to do is predict the seasons, or even where certain lights will occur in the sky, assuming a stationary sun is perfectly reasonable.

Which isn't to say that math and physics suck, or that they are 'wrong', or not real. Google map isn't the 'basis' of the earth, its just a model, but its pretty darn useful if you want to find where you are going.
 
  • #79
I don't understand why there can not be perfect triangles in the universe.
 
  • #80
wofsy said:
Observation may just be a way to structure mathematics. It gives us a picture of the mathematical world. Reality is more than what we observe - it is something underneath our observation that is mathematical or inseparable from mathematical structures.
Our experiences are extremely consistent. Mathematics is deductive, so its very useful.
To me it is a fallacy to assume a priori that the world is just what we observe.
When you start using words like 'world' and 'reality' it can get confusing, because often people are referring to different things.

Many philosophers would argue the world we observe is the only one we have access to.
But they would also distinguish the 'world' and 'reality' from the cause of reality, or what exists. Further, they would distinguish the world of the senses from the 'constructed' world of our mind. Even math can be described as a world.
Math certainly can be used as a language - but it is far more than that and much of it is unrelated to experience. Experience on the other hand, is always related to math. This is because it is the math that is real, the experience fleeting and uncertain.

The ancient greeks thought that geometry was the real world, because it had a perfection and consistency that they did not see in the physical world. The physical world was chaotic; thoroughly unpredictable. Modern science has shown us that our world is very complex, but also very consistent.

The modern world is full of specialists, if you are a mechanic, you will see the world mechanistically, if you are in medicine, you will see the world as a living thing, and if you are a writer you will see the world as a narrative. People immersed in math are no different. But I think this is a temptation we all do best to avoid.
 
  • #81
wofsy said:
I don't understand why there can not be perfect triangles in the universe.

What would it be made of?
 
  • #82
JoeDawg said:
What would it be made of?

I don't know. But it seems like there are perfect things in the Universe. Two electrons in the same spin state are identical as are other elementary particles.
 
  • #83
wofsy said:
I don't know. But it seems like there are perfect things in the Universe. Two electrons in the same spin state are identical as are other elementary particles.

I think perfect is a difficult word choice to use. If two electrons are entangled in a quantum sense, what essence of them is 'perfect?' A triangle in geometry can be considered perfect if it fits a definition within the realm of geometry to a certain degree. But how does one label the universe as perfect or imperfect?
 
  • #84
Evolver said:
I think perfect is a difficult word choice to use. If two electrons are entangled in a quantum sense, what essence of them is 'perfect?' A triangle in geometry can be considered perfect if it fits a definition within the realm of geometry to a certain degree. But how does one label the universe as perfect or imperfect?

Right. I just meant a triangle seems to be ideal because it is exactly as we conceive of it and so are electrons. Feynman gives examples of scattering experiments whose results depend on the indistinguishability of incoming electrons. It seems that perfection to use an admittedly charged and perhaps vague word is common not only to triangles but to objects as modeled in Quantum physics.
 
  • #85
wofsy said:
Right. I just meant a triangle seems to be ideal because it is exactly as we conceive of it and so are electrons. Feynman gives examples of scattering experiments whose results depend on the indistinguishability of incoming electrons. It seems that perfection to use an admittedly charged and perhaps vague word is common not only to triangles but to objects as modeled in Quantum physics.

True, but all you're describing is perfection within the definitions given by specific human-made notions... whether those be geometry or QED. A triangle actually exists no more than a probabilistic electron cloud does. They are representations and not actual truisms. To define the universe as perfect or imperfect would be assuming certain qualities of it are more preferred than others within some rule system.
 
  • #86
Evolver said:
True, but all you're describing is perfection within the definitions given by specific human-made notions... whether those be geometry or QED. A triangle actually exists no more than a probabilistic electron cloud does. They are representations and not actual truisms. To define the universe as perfect or imperfect would be assuming certain qualities of it are more preferred than others within some rule system.

I have a conceptual difficulty in thinking of geometric structures or things that are always true
as human made. This to me implies that the truths weren't true until a human thought of them.

Also I think that electrons do exist but they have a conceptual component. If not then maybe nothing really exists. We don't exist either. This thread doesn't exist. Are we and this thread not in part conceptual constructs?

I would say that the electron still exists even when our theory changes. I still exist even though I am not the same person as yesterday. At each instant am I instantaneously reincarnated since I am no longer in the previous instant?
 
  • #87
That's fine since electrons are part of a phenomological study. Triangles are a classification. No triangles actually exist, but triangle-like shapes can be modeled as triangles if their degree of triangleness is sufficient.
 
  • #88
Pythagorean said:
That's fine since electrons are part of a phenomological study. Triangles are a classification. No triangles actually exist, but triangle-like shapes can be modeled as triangles if their degree of triangleness is sufficient.

Right. But electrons still have this property of uniformity found in mathematical objects.

Electrons are certainly part of a phenomenological study but so is everything.
 
  • #89
wofsy said:
Right. But electrons still have this property of uniformity found in mathematical objects.

Electrons are certainly part of a phenomenological study but so is everything.

That can be argued sure, but it's not necessarily true:
wiki said:
The boundaries between theory and phenomenology, and between phenomenology and experiment, are fuzzy. Some philosophers of science, and in particular Nancy Cartwright argue that any fundamental laws of Nature are merely phenomenological generalizations

http://en.wikipedia.org/wiki/Phenomenology_(science)

I would consider geometry more theoretical and self-contained, like mathematics. If we study something consistently enough, we eventually give it a name (electron in this case). It's defined more as "the thing that gives rise to this phenomena" and sure, we could argue that electrons don't exist or that it's actually a set of things giving rise to the phenomena that we "blame" on electrons.

A triangle, on the other hand, is much more rigidly defined (a polygon with three sides). And once we've defined it in the frame of mathematics, we can manipulate it mathematically without going out and looking at triangles in the real world.

With an electron, we must continue to rely on observation to understand it more deeply.
 
  • #90
wofsy said:
I have a conceptual difficulty in thinking of geometric structures or things that are always true
as human made. This to me implies that the truths weren't true until a human thought of them.

There is no such thing as a triangle. There are ways of relating to space by categorizing it from a Euclidean perspective... but that's just a classification of the observed system. If an object has a shape in which we would label as a triangle, that is irrelevant to the actual object itself... it could be made of anything, any color, anything. The triangle itself does not exist, it is just us choosing to classify certain things as that shape.

wofsy said:
Also I think that electrons do exist but they have a conceptual component. If not then maybe nothing really exists. We don't exist either. This thread doesn't exist. Are we and this thread not in part conceptual constructs?

We have altered our definition of an electron since they have first been discovered numerous times. They were once perceived as real objects that had a definite position in an orbit around the nucleus. Now we have seen that they are not objects in any sense we know of, they can have only a position or a velocity but not both. They are now defined as a cloud of probabilities that occur within a certain range around the nucleus. I'm not convinced that electrons exist in any sense that we have currently defined them as.

wofsy said:
I would say that the electron still exists even when our theory changes. I still exist even though I am not the same person as yesterday. At each instant am I instantaneously reincarnated since I am no longer in the previous instant?

That depends on your perception of time which is also not fully understood by anyone. You are giving hard definitions to very theoretical questions. Are you the same person? All of your cells have cloned or replaced or rebuilt themselves using different atoms from different elements from different foods that you ate... your neural pathways will never fire in exactly the same configuration... you only perceive yourself to be the same through stored information.
 
Last edited:
  • #91
Evolver said:
There is no such thing as a triangle. There are ways of relating to space by categorizing it from a Euclidean perspective... but that's just a classification of the observed system. If an object has a shape in which we would label as a triangle, that is irrelevant to the actual object itself... it could be made of anything, any color, anything. The triangle itself does not exist, it is just us choosing to classify certain things as that shape.

While this sort of thing gets into rut after a while - it seems to me that observation only exists existentially. it is an impression - our only hope is to converge on concepts that give us a picture of a reality. While we may never be entirely certain of that reality - that does not mean that it does not exist. Mere observation is just an impression.

The idea of existence to me is somewhat meaningless. There are meaningless sense impressions - do they exist? There are theoretical constructs - do they exist? It seems that the only thing we can be certain of is the intellectual processes that enable us to develop fundamental theories - our own minds in the process of rationalizing our experience in terms a fundamental structure of the world. This certainly exists.

But that was not my point about the electron. A lot of science is purely empirical in the sense that it merely describes observed phenomena. In physics Newton's Laws, Maxwell's equation, and the Shroedinger equation are examples. But sometimes the features of the theory contains ideas which are not purely empirical but fundamental - the electron is a fundamental concept in quantum mechanics (an purely empirical concept in classical physics) and as a theoretical idea is much like a triangle in that it is exactly what it is rather than some approximation. Later the idea of the electron may be modified but that does not change it's intellectual content within current theory.
 
  • #92
wofsy said:
While this sort of thing gets into rut after a while - it seems to me that observation only exists existentially. it is an impression - our only hope is to converge on concepts that give us a picture of a reality. While we may never be entirely certain of that reality - that does not mean that it does not exist. Mere observation is just an impression.

The idea of existence to me is somewhat meaningless. There are meaningless sense impressions - do they exist? There are theoretical constructs - do they exist? It seems that the only thing we can be certain of is the intellectual processes that enable us to develop fundamental theories - our own minds in the process of rationalizing our experience in terms a fundamental structure of the world. This certainly exists.

You're teetering on the brink of describing Solipsism. In that case, the only thing that can be proven to exist is the mind and nothing else. Any theories of science would be irrelevant if that were true.

wofsy said:
But that was not my point about the electron. A lot of science is purely empirical in the sense that it merely describes observed phenomena. In physics Newton's Laws, Maxwell's equation, and the Shroedinger equation are examples. But sometimes the features of the theory contains ideas which are not purely empirical but fundamental - the electron is a fundamental concept in quantum mechanics (an purely empirical concept in classical physics) and as a theoretical idea is much like a triangle in that it is exactly what it is rather than some approximation. Later the idea of the electron may be modified but that does not change it's intellectual content within current theory.

Quantum Electrodynamics, for example, is still a representation. It's a way we classify the universe's behavior as. Think of it like this... an electron only exists in measurements.
 
  • #93
Evolver

Existence has been discussed a lot here but no one has defined it. Existence within a theory is very much like a feature of an intellectual construct. If that is existence then a triangle must also exist. Observation is a fleeting impression. Such things as electrons are not observed - we can only say that our impressions are intellectually organized in terms of the idea of an electron.

I still stand by the distinction of empirical and fundamental theories. Both types explain observation - but they are intellectually distinct.
 
  • #94
wofsy said:
Evolver

Existence has been discussed a lot here but no one has defined it. Existence within a theory is very much like a feature of an intellectual construct. If that is existence then a triangle must also exist. Observation is a fleeting impression. Such things as electrons are not observed - we can only say that our impressions are intellectually organized in terms of the idea of an electron.

I still stand by the distinction of empirical and fundamental theories. Both types explain observation - but they are intellectually distinct.

You are advocating Solipsism. Which is fine, but know that if everything exists only on an intellectual level, then that proves nothing about an 'actual' universe.
 
  • #95
Evolver said:
You are advocating Solipsism. Which is fine, but know that if everything exists only on an intellectual level, then that proves nothing about an 'actual' universe.

Whatever the actual Universe is doesn't it mean that processes of mind are part of it?

Could you define for me what you mean by the actual Universe?

BTW: Maybe scientific theories could have a criterion of knowability attached to them that requires that they be consistent with an intellectual process - almost as if there were a rational essence to it - but without a deity. This seems to be the heart of the Principle of Sufficient Reason.
 
  • #96
wofsy said:
Whatever the actual Universe is doesn't it mean that processes of mind are part of it?

Could you define for me what you mean by the actual Universe?

BTW: Maybe scientific theories could have a criterion of knowability attached to them that requires that they be consistent with an intellectual process - almost as if there were a rational essence to it - but without a deity. This seems to be the heart of the Principle of Sufficient Reason.

Well the alternative to solipsism would be a universe that was not effected by the beings observing it. What you are saying about the universe being innately linked to the processes of the mind could in fact mean there is no universe at all, simply the mind. Because if the processes are all that matters, the universe is not necessary. Descartes talks about this in depth. So if that's the case, there's no point in relying on any observations or measurements as they would all only be further illusions of the mind.
 
  • #97
Evolver said:
Well the alternative to solipsism would be a universe that was not effected by the beings observing it. What you are saying about the universe being innately linked to the processes of the mind could in fact mean there is no universe at all, simply the mind. Because if the processes are all that matters, the universe is not necessary. Descartes talks about this in depth. So if that's the case, there's no point in relying on any observations or measurements as they would all only be further illusions of the mind.

This is interesting. Can you suggest some Descartes reading?

Well maybe we could do Science as though there were a rational mind and hope to come up with a scientific picture of reality consistent with it. Maybe that is as close as we can get (and that might not work either).
 
  • #98
wofsy said:
This is interesting. Can you suggest some Descartes reading?

Well maybe we could do Science as though there were a rational mind and hope to come up with a scientific picture of reality consistent with it. Maybe that is as close as we can get (and that might not work either).

"Meditations on First Philosophy" is one of his most comprehensive works.
 
Back
Top