Do any paradoxes really exist?
479777
I doubt it, I think it's just one problem that someone put forward to explain why Time Travel would be impossible, some of the first examples given were the Grandfather Paradox and the Butterfly effect but loads of Oxymoron's exist such as "American Military Intelligence!"  but what's the point of being an oxygen breather if you can't be a moron :0)
215635
The thing is ... a parrallel universe may exist. We cannot prove it one way or another ......YET! :) How do we know that another universe and our universe and many other universes .... do not exist in a metaverse? And if so .... maybe something like distance etc. exists in that metaverse ... which imparts some of it's qualities to our own universe and indeed to any other universe within that metaverse. Hence ..... we may not even have a void outside our universe at all.
294990
Imagining the world with no hypothetical situations is a hypothetical situation itself.  It's an impossible paradox.
1051739
No.\n\nI can always find a real world explanation for things that seem "mysterious" to me. You just have to be willing to question things and go out and look for the real answer.
517258
No.\nThere is none.\nBut there are a bunch of reasons to believe it as fiction.
166351
"A seemingly contradictory statement that may nonetheless be true; an assertion that is essentially self-contradictory, though based on a valid deduction from acceptable premises."\n\nBut what all that confusing nonsense means is that when something is a paradox, you wonder how it can be possible when it seems that it should be impossible. Or saying something that is true, and yet seems false. \n\nFor example, "The ice was so cold that it burned." Touching a cold surface should, scientifically, make you feel cold, as you are losing warmth by touching it. However, extremely cold objects/substances are described as "burning." \n\nOr, try a complicated scenario as a paradox: you are standing in the exact center of a free-floating sheet of ice in the middle of a pond during a snow storm. If you move, the platform will tip, and you will fall and freeze to death in the icy water. However, if you don't move, your body will freeze nonetheless. Often referred to as a "catch-22."\n\nAnother statement that is a paradox: suppose you were to say, I am from the island of Nor. Everyone on Nor is a liar.  Therefore, if you are telling the truth, you are lying. If you are lying, then you are telling the truth.\n\nOr a classic: This statement is false. Is it true, or is it false? \n\nHope this helps.
676857
Assuming time travel is possible, I think such a senario might be possible.  The trouble people have with time paradox lies in the assumption that every thing in the universe shares the same time line.  Why should that be true?  Here's an example:\n\n\n------  X  -------------------  Y  ---------\n\nAbove is our theoretical timeline.  Y represents me, in the "present".  I use my time machine to go back to X, before my grandfather sires my father, and kill him.  Logic dictates that I shouldn't exist.  What I'm suggesting looks like this, instead:\n\n---------------------------  Y  ------------\n                             \n\n---------------------------  X  ------------\n\nX & Y still represent me & my grandfather, but each of us now possess our own separate time line.  Instead of "going back in time", I simply hop off my timeline & onto his.  I am now free to perform my assassination, without consequence to me (beyond the obvious legal ones), as I was not born on this timeline, but my own.  Whether or not I can now return to my own timeline is an entirely different question, however.
280429
Is there a real question in this?
32358
I don't think anyone recorded it for posterity. It has been mistakenly attributed to Zeno of Elea (circa 490 BC to 430 BC). He has some equally interesting paradoxes:\nhttp://en.wikipedia.org/wiki/Zeno%27s_paradoxes
27421
It is not known whether this is possible or not right now. So it is possible that it's possible. :-)\n\nFor example, several credible scientific theories postulate the existence of parallel universes that can be accessed via various ways. Most of them would only allow one-way travel right now (like through a black hole), but the physics are not fully understood, obviously. It is possible that we could find a different one-way path back to this universe from the other one, for example.\n\nSee the article below for some conjecture from one of the great physicists thinking about these things. He wrote the book "The Elegant Universe," which also makes for interesting reading about these types of things, and gives a layman's introduction to string theory.
410381
Sure there can be.   It's all a matter of perspective.   \n\nUltimately, you can keep questioning everything to the point where we couldn't comprehend a diety.   Where did we come from?  God made us.   Where did God come from?  He always was.   \n\nI've always had a problem with..."He always existed."   So, if he always existed...what did he do?   Just sat in the middle of nowhere doing nothing.
153034
No, nobody really can prove it, with assuming several axioms\nfirst. There are certain things you have to assume are true in your universe, without necessary being able to check them. From those axioms, you can derive conclusions (theorems) that are always true, but only in that particular\nuniverse. The discussed operation of addition is one such theorem. If you assume that the axioms of natural numbers are true, then this addition becomes quite trivival. If you assume those axioms of natural numbers to be false, then the above operation of addition might become false with a different set of supposition. In other words, only with the facts given, one cannot prove, nor disprove, the fact of addition. It all depends on the set of assumptions you would have made before adding the two ones.
765111
paradox:  A contradictory statement that may nonrtheless be true.\n\ninferred:  To conclude from evidence or premises.
281432
This is a paradox!! Cannot be resolved. It is just like saying that "This sentence hass 3 misttakd."
243613
Parallel worlds... Twins of our own that differ only slightly. By events or even natural laws.\nAny thing CAN exist, until it is proven that it can't.\nAs far as the how part of your question, we don't know yet how this world exists. Don't get to far ahead of us or you'll have to come up with your own answers.
507606
contradictions r not possible.
627749
The easy answer is no. The pieces that the sphere would have to be split into would not be physically possible. The proof itself depends on the axiom of choice. In fact, there are models of set theory that don't have the axiom of choice where the Banach-Tarski paradox cannot happen. This shows that an infinite number of choices is needed, which demonstrates the physical impossibility.