Does Thinking Prove Existence?

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In summary, the conversation discusses the philosophical concept of existence and the phrase "I think therefore I am" as a proof of existence. It is debated whether thinking is the defining factor of existence and if external proof of existence is possible. The idea of living in a simulated reality is also mentioned. One participant suggests that belief is what truly confirms existence, while another jokingly expresses concern about the possibility of physical harm in the conversation.
  • #1
Jameson
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I've heard the phrase "I think therefore I am" as a proof of existence, but I do not find that very sound (and i think i heard that Descartes didn't exactly say that phrase).

I believe that because we have the ability to think, either by free will or not, then we have to exist. Even if we are in a "Matrix" setting or if we are all a figment of someone else's imgination. We exist in some form, maybe just not in the reality we perceive.

Jameson
 
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  • #2
Jameson said:
I've heard the phrase "I think therefore I am" as a proof of existence, but I do not find that very sound (and i think i heard that Descartes didn't exactly say that phrase).
It's sound as far as it goes. Descartes used it as an axiom because for him the statement could not be false. However it is impossible to demonstrate a proof of ones existence to anybody else, and in this sense, which is the scientific or western philosophical sense, 'cogito ergo sum' is a meaningless statement, since it is untestable.
 
  • #3
Jameson said:
I've heard the phrase "I think therefore I am" as a proof of existence, but I do not find that very sound (and i think i heard that Descartes didn't exactly say that phrase).

I believe that because we have the ability to think, either by free will or not, then we have to exist. Even if we are in a "Matrix" setting or if we are all a figment of someone else's imgination. We exist in some form, maybe just not in the reality we perceive.

Jameson

As Canute points out, an external proof isn't possible. You are right too that in order to think a thinker must exist (anything that "does" or manifests is proof the thing exists). However, often this debate is about whether thinking itself is what defines existence, and that is definitely not true because if it were, then one would cease to exist if one stopped thinking. It is quite possible to learn to stop thinking, and when one does one becomes more aware of one's existence, not less aware. In terms of existence, all thinking makes one aware of is the existence of thinking.
 
  • #4
I exist, the rest of you are just computer simulations created for my amusement.

Prove me wrong.
 
  • #5
Yes, you amuse me very much, russ..
(I'm particularly impressed by that subprogram)
 
  • #6
Jameson said:
I've heard the phrase "I think therefore I am" as a proof of existence, but I do not find that very sound (and i think i heard that Descartes didn't exactly say that phrase).

I believe that because we have the ability to think, either by free will or not, then we have to exist. Even if we are in a "Matrix" setting or if we are all a figment of someone else's imgination. We exist in some form, maybe just not in the reality we perceive.

Jameson


"I think therefore I am" is wrong, it should be… “I believe therefore I am”...
 
  • #7
Microburst: If I run up to you on the street and (in a fit of rage) I bite off your little finger, how much more real is it if you think I bit off your finger vs. you believe I bit off your finger?
 
  • #8
Hmm... needs salt...

Math Is Hard said:
If I run up to you on the street and (in a fit of rage) I bite off your little finger...
:bugeye: :bugeye:
Is this something we should be worried about?
:bugeye: :bugeye:
How often does this impulse come over you?
:bugeye: :bugeye:
 
  • #9
Technically, you could be believing that you don't have your finger by having the right neurons turned off/stimulated, etc. You wouldn't see it, you wouldn't feel it, and you sure as hell couldn't see it.
 
  • #10
Math Is Hard said:
Microburst: If I run up to you on the street and (in a fit of rage) I bite off your little finger, how much more real is it if you think I bit off your finger vs. you believe I bit off your finger?

MIH: Believing is the “surrender” stage of the thought, where the though is now confirmed and believed to be true in your mind. If you just think and not believe you do not “actualize” ... think about it ,..I mean believe it ... :biggrin:
 
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  • #11
Microburst said:
MIH: Believing is the “surrender” stage of the thought, where the though is now confirmed and believed to be true in your mind. If you just think and not believe you do not “actualize” ... think about it ,..I mean believe it ... :biggrin:

Are you saying that it is the trust level that makes the difference? If I have a thought and I completely trust it to be an experience of an event that actually happened, then I believe it?

plover, I will not bite you. I don't like the taste of rainbirds - too dry and gamey, like duck :smile:
 
  • #12
Math Is Hard said:
Are you saying that it is the trust level that makes the difference? If I have a thought and I completely trust it to be an experience of an event that actually happened, then I believe it?

plover, I will not bite you. I don't like the taste of rainbirds - too dry and gamey, like duck :smile:


Yes darling, you can simply think about not existing, but you will still exist, but you stop existing the day you truly believe you do not exist! & believe me you’ll never believe that! :wink:
 
  • #13
Microburst said:
Yes darling, you can simply think about not existing, but you will still exist, but you stop existing the day you truly believe you do not exist! & believe me you’ll never believe that! :wink:
you're right, Micro! it would be very tough to sell myself on that! :rofl:
 
  • #14
I find it quite simple to answer the question "How do I know I exist?"

Pinch yourself. Do you feel pain, or any other sensation? Wouldn't this imply that because you are able to grab your own skin, because you are able to feel pain, that you exist?
 
  • #15
It would be particularly interesting if the finger bitten off wasn't actually there in the first place.
 
  • #16
Look, even if we were all computer programs, we still exist. You can get into a debate on our essence (are we programs? people? both? neither?), but it seems to me that whatever has an underlying essence exists. The whole "I think therefore I am" line could work if thinking implies an essence, which in turn implies existence.
 
  • #17
I'm sure it is possible to prove your own existence, if you define existence that way...
 
  • #18
I really think sometimes that I'm part of someone's simulation...

Does that mean I don't exist? Maybe, maybe not. If that above statement is true, then I exist as part of someone's simulation. If the above statement is false, then I exist "in real life"...

But does existence in simulaton mean anything? Does existing "in real life" carry discernable meaning, and affect day to day performance in life?
 
  • #19
russ_watters said:
I exist, the rest of you are just computer simulations created for my amusement.

Prove me wrong.

Really,… then you can surely read my mind, now tell me what am I thinking at this moment?
 
  • #20
Microburst said:
Really,… then you can surely read my mind, now tell me what am I thinking at this moment?

You're thinking 'Can anyone tell me what I am thinking?'
 
  • #21
I have personally been thinking about the nature of existence a lot lately, although with a different perspective (I was looking at it with regards to the existence of God). Also, for my sins, I'm currently studying philosophy at A-Level, hoping to continue at Uni, and one of the topics covered was philosophy of mind, which hints at the nature of existence.
Anyhow, getting to my point. Before we can decide whether we exist, we need to define existence. And therein lies the tricky part. A good example (and yes, I'm sorry, I'm going to have to refer to theology here) is the Ontological argument for the existence of God (I'm agnostic, btw). Anselm's argument is, basically, that God is that than which nothing greater can be conceived, that which exists in reality is greater than that which exists in the mind, therefore God exists. This raises 2 interesting points...it's not only existence that needs to be defined, but "reality", for surely, ideas "exist", even if they're just in the mind? Am I making sense? So existence is a nasty concept to try and pin down. An idea can "exist" in the mind, but not in reality, assuming that reality can be defined as the physical world. But then if you get into Quantum Physics, it gets tricky...Charms, Leptons etc (as far as I know) have only been proived to exist indirectly, so do they exist in "reality"? Now, where am I going with this...
Well, basically you can use Descarte's argument, it works...but if you can argue that something "exists" in the mind, then a heck of a lot of things "exist". So it's not a matter of whether something exists, but rather where it exists (e.g. in "reality" or the "mind").

Hope at least some of that is relevent/interesting :smile:

Amber
 
  • #22
if I were to punch someone in the nose, would they doubt my exsistance?
 
  • #23
WolfSong: I think you’re right; the question is not if “stuff” exists rather where it exists… Does it matter if stuff exists beyond your perception? Does universe exists after you die, and will existence of universe even matter to you when you no longer perceive it. What if we are in some sort of GOD / Nature made matrix where in “reality” nothing is as it seems…
 
  • #24
theriddler876 said:
if I were to punch someone in the nose, would they doubt my exsistance?


As long as we both perceive punch to be a painful thing, punch is real! Or should I say relatively real… :yuck:
 
  • #25
Microburst said:
MIH: Believing is the “surrender” stage of the thought, where the though is now confirmed and believed to be true in your mind. If you just think and not believe you do not “actualize” ... think about it ,..I mean believe it ... :biggrin:

Nope, it's only the stage at which you think you believe that you have a thought. Then we have to go back to the stage where we believe that we think that we believe that we have a thought.
 
  • #26
loseyourname said:
Nope, it's only the stage at which you think you believe that you have a thought. Then we have to go back to the stage where we believe that we think that we believe that we have a thought.
ackk! please pass me the Advil!
 
  • #27
loseyourname said:
Nope, it's only the stage at which you think you believe that you have a thought. Then we have to go back to the stage where we believe that we think that we believe that we have a thought.

Existence is beyond content of cognition, its perception is what you “actualize “ via thoughts and sensory feedback,… but I know what you’re thinking,… how can microburst say that!? Let me give you an example, let say you and I are sitting on a bench in a park in NYC, admiring a beautiful stone made fountain. And let’s say I turn to you and say “what a work of art” and then you reply WOW it sure is beautiful. Now to me fountain is a reality, to you fountain is a reality, you and I are reality to each other, but fountain! what about the fountain, that holds no thought, even Though it exist, it only exist for you and me and whoever is able to perceive it. Boys and girls do you see where I’m going with this?... Although this argument looks simplistic, it’s not, think about it…
 
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  • #28
oh exit stage felt

it's that libel line of ... i am that i am...that is enough

on the pc i think it goes, "They spam therefore I am," because you couldn't ignore it sort of deal left?

PH does kick spammers off right? so yeah, they/we exist. i stink therefore you move two feet from me ad nauseum. :devil:
 
  • #29
this is why i propose a 5th dimension called reality. a realtive fundamental technique could be used to determine differences in reality. thus reality could be measured
 
  • #30
WolfSong said:
I have personally been thinking about the nature of existence a lot lately, although with a different perspective (I was looking at it with regards to the existence of God). Also, for my sins, I'm currently studying philosophy at A-Level, hoping to continue at Uni, and one of the topics covered was philosophy of mind, which hints at the nature of existence.
Anyhow, getting to my point. Before we can decide whether we exist, we need to define existence. And therein lies the tricky part. A good example (and yes, I'm sorry, I'm going to have to refer to theology here) is the Ontological argument for the existence of God (I'm agnostic, btw). Anselm's argument is, basically, that God is that than which nothing greater can be conceived, that which exists in reality is greater than that which exists in the mind, therefore God exists. This raises 2 interesting points...it's not only existence that needs to be defined, but "reality", for surely, ideas "exist", even if they're just in the mind? Am I making sense? So existence is a nasty concept to try and pin down. An idea can "exist" in the mind, but not in reality, assuming that reality can be defined as the physical world. But then if you get into Quantum Physics, it gets tricky...Charms, Leptons etc (as far as I know) have only been proived to exist indirectly, so do they exist in "reality"? Now, where am I going with this...
Well, basically you can use Descarte's argument, it works...but if you can argue that something "exists" in the mind, then a heck of a lot of things "exist". So it's not a matter of whether something exists, but rather where it exists (e.g. in "reality" or the "mind").

Hope at least some of that is relevent/interesting :smile:

Amber

correct me on this:
Defining existence is the same as defining reality; they are converses of each other. If reality is the context of existence as you have implied, then reality is a function of anything that exists. IOW, something exists given a particular context of reality, thus making existence dependent on reality. This gives rise to the question: Is existence definite? answer: yes, given a particular reality. To conclude, since reality is the basis for existence, can we then say that something real is only real in a given reality? [yes?]
If so, then something real exists, as it, by transitivity, follows the conclusion of my second sentence in bold.
Furthermore, this trail of thought gives rise to another profound question as the first [of existence]: What is reality? Is it also relative, given a particular kind of existence? If so, the reality and existence are interdependent. :eek:
 
  • #31
disturbed1 said:
this is why i propose a 5th dimension called reality. a realtive fundamental technique could be used to determine differences in reality. thus reality could be measured

Nice idea. But, if I'm right (on my previous post) and reality and existence are interdependent and perhaps the same, then (and since all x dimensions exist already), then the 5th demension (which you have proposed to be reality) is the same as each of the other x demensions.
 
  • #32
it may not be a dimension but can obviously be measured, and I can't see why a huge model isn't started to begin measuring it in space
 
  • #33
That is reallly vague you know. Measuring reality is ambigious because reality constitutes many different things such as computers and people. Though the aforementioned constituents seem like diverse portions, they are related in one way or another. Everything is also related one way or another. This leads to the conclusion that everything exists on a set basis which is common to all things that exist. (Of course, this is true for a particular reality only; in this case it is this one in which we reside and thus have in common)
The diversity can be linked to the complexity of the universe; which in turn arose from a simple set of rules to guide the evolution into complexity --> chaos. With this train of thought, we come to the one and only (and unknown) TOK. It is a Theory of Everything and theoretically would describe everything that exists by generalization. The generalization looks at the big picture, reality. I don't know if this is the same as measuring though.
 
  • #34
well Jameson this is one hell of a question, u said that having the ability to think is a proof for existence. well this means that everything that cannot THINK does not exist and that's totally wrong. i want to remind of this sentence said by a big french philosopher: "Je me révolte, donc je suis" i totally forgot his name. for now i believe in itbut i cannot assume the real answer because myself i do not know it. and for those who said that living freely is equal to existing let me tell them that in the current definition of FREE no one is free @ all. we are guied by our needs (eating drinking sleeping) our feelings, our minds. Therefore we are not free.
 
  • #35
"can you prove you exist?"

yes, i can.
 

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