Quote:
Originally Posted by A.Marlowe
1) You'd be pretty hard pressed to deny the existence of the universe...
2) As in, an objection to cogito ergo sum? Do elaborate!
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Before you expect some kind of miraculous proof that we don't exist, I'm only pointing out that such simple things we take for granted cannot be
proven. This does not, again, reflect my personal stance or opinion of the situation. Yes, I think it's silly to go through life believing you do not exist, and yes I believe I, and you, exist...but I'm only arguing that we cannot know for certain.
"I think therefore, I am" is a philosophical standpoint...it is not proof of existence. In essence, Descartes was saying "I can envision my own thoughts and perceive my own actions...this is far too wonderful to deny." But be careful not to fall into that trap...this is not proof, it's as with everything, a belief.
1) and 2) go hand in hand. The key is in recognizing that
perception is far from proof (and in fact tends to mislead us on occasion). I'd like to say right off the bat that I
do believe in the universe...it does seem silly to deny something so tangible doesn't it? However I understand that having definitive proof of its existence is much harder to come by, than simply 'sensing' it.
Creating a paradox to demonstrate my point is easy, but choosing the right one is difficult...by 'right one' I mean the one that convinces you. Not everyone will be convinced by every specific example, but hopefully you can see what I'm trying to accomplish even if neither of the examples I'm about to present affect you personally. I can think of two at the moment:
1: The mental approach (ie. 'what you see may not be what you get').
After writing this first one, I think I could word it much better...but I'll post it anyway, and if it's not very effective I'll try again at a later time. (I'm rather tired, just came from a wedding).
The mind is its own paradox...it in essence, interprets the world around us. Much like how 'velocity' is a relative concept (ie. if two objects are moving in space, can you conclude neither one is at rest? You need a common point of reference with which to measure), what our minds perceive must be verified against some level of mental normacy.
Suppose there is some catastrophic event that wipes out most human beings...at least one human being survives. This human being, a scientist by fluke, sees another survivor.
How does the scientist prove this survivor exists, and is not just a construct of their own mind? Can the scientist ever really know? You're probably thinking 'sure' but what I'm getting at is the fact that mental illness may be a factor. The scientist can test their existence by talking to them, even touching them** but is this enough?
Does the scientist have a history of schizophrenia? Even if not, could he have developed it? It's always a possibility...without other people telling him 'yes, this is a tangible person' he has no way of knowing for certain that it's not just a construct of his mind.
(**I'm sure you know (unless I've made a mistake here), but for other readers, schizophrenia can manifest itself in such severe ways that someone suffering from it believes there is a living entity which is actually produced squarely in their mind. It can be so severe that the person suffering can actually feel physical interactions with these visions).
Now extend this concept to normal situations, objects besides people. Colour-blind people for instance, only know colour exists because others told them. The average joe only knows atoms exist because someone told them...but this means the problems are two-fold:
a) We may perceive something which does not actually exist (like as a result of schizophrenia)
b) We may not perceive something which does (like say, atoms before the advent of sufficient techology)
For these two reasons, or perceptions, and interpretations of our senses, may be way off the mark.
2: The theistic approach (ie. 'you may not have existed yesterday').
I'm sure you can acknowledge that God is never provable, nor is he disprovable beyond all possible doubt. So this means, no matter how avid an atheist or believer someone may be, there is always some form of doubt buried deep inside whether we acknowledge it or not (since we
believe in absence of proof). Of course if this doubt is negligible, then we're willing to make the leap and believe/disbelieve whole-heartedly, but bear with me.
So there is some probability, whether large or small that God exists (since we cannot conclusively say He does not exist).
If God exists, He could be any number of different things...what I mean is, what we think of when we say God could be way off the mark. But there's some probability, large or small, that God is omniscient and omnipotent.
If God is omniscient and omnipotent, He can do anything He wants. Of course our probability of guessing what God did is probably rather small, but still...it is
possible that God created you at this exact moment, or a brief instant in time ago...with your memories intact. Why not? He's God, He can do anything.
So in this (largely improbable) scenario, which I point out is not disprovable and hence on a probabilistic level has some finite, nonzero probability, you did not exist yesterday...even though you're probably reasonably sure you did, there is no way of being completely certain, since we cannot disprove this case exists.
Regardless, if either of these two examples is not convincing, hopefully you can at least see what I'm trying to say here...I'm not that clever, but some clever people can surely present some clever paradoxes.