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#1 |
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FFR Player
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ok in the last topic i was a part of, we kinda talked about paradoxes. now ive herd two different types of paradoxes but they are totaly different from each other. now im not sure if a paradox has two different meanings but i know that for sure, one of them is a real paradox. ok, the paradox that every1 talks about is the one about the arrow hitting the target. it goes like this: lets say you throw an arrow at a target. in order to hit the target, the arrow must travel half the distance to hit. now if it cept traveling half the distance, the arrow will never hit the target.
To me, that is not a paradox. an example of a paradox to me would be something like this: lets say you go back in time to kill your grandpa. you kill him and you come back to present day alive. it cant be possible to live because in order you you to life, you grandfather had to of been alive because your dad needs to be born in order for you to be born. this affect causes a loop that is not possible. ok so out of those two examples, which 1 is the paradox because they are two toatly different things. pls help me out with this 1 people. |
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#2 |
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FFR Player
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The second example you mentioned is definately mentioned as a paradox. The first example you mentioned is only faulty reasoning...we spoke about it in physics class, but unfortunately, I don't totally remember all of the details of the speech, but the first example is basically an infinate sum, and what isn't realized is that though the distance gets smaller, the time gets smaller, too. So basically, if I remember correctly, the first example you mentioned is faulty because it only counts up to the time right before the arrow strikes the target - not the stop of the arrow.
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#3 |
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FFR Player
Join Date: Jun 2004
Age: 32
Posts: 940
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TSA pretty much hit it on the head. A paradox is, generally speaking, a contradiction of logic. For example, John ALWAYS lies, and Sean ALWAYS tells the truth. Sean says "I'm 10 years old", and John says "Sean is 10 years old." You see the contradiction?
That said, ironically enough, infinite sums seem to cause paradoxes often times in mathematics, but not in the way you're thinking... that's a different conversation that's mostly based on geometric principles. But yeah, just think Paradox = Contradiction and you should be fine. |
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#4 |
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is against custom titles
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The former example (though slightly changed) is known as Zeno's Paradox. This paradox was created before the invention (yes, invention) of the number zero. It's still quite paradoxical if you don't have the right tools to explain it.
The latter didn't strike me as a paradox, but I suppose with a looser definition it could be. I'm sorry I don't have a good example or definition at hand, though. Perhaps the chicken or the egg? --Guido http://andy.mikee385.com |
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#5 |
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FFR Player
Join Date: Jun 2004
Age: 32
Posts: 940
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No, the egg came first. It doesn't specify what type of egg could have came first- for all we know they could be talking about a dinosaur egg, or a fish egg. Since it doesn't specify that it does or doesn't have to be a chicken egg (most people automatically awesome it should be), we can determine that the egg would come first. It's one of those 'think outside the box' things. Not exactly a paradox, just a riddle.
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#6 |
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Admiral in the Red Army
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The second example is known as a time paradox and it only comes up in science fiction about time travel. For instance, in Back to the Future, Marty nearly gets erased from existence because he stopped his mother from falling in love with his father. However, due to the rules of time travel in the BttF line, Marty had enough time to fix the mess and ensure that his parents did fall in love. In reality though, Marty's mucking around in the past would "cause a chain reaction that would unravel the very fabric of the space-time continuum and destroy the entire universe." Erasing from existence wouldn't be limited to one's self- such a paradox would erase all existence.
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#7 |
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FFR Player
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the sentence below is true.
the sentence above is false. "You must have war to create peace." Ones off the top of my head. Hopefully someone finds this useful. |
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#8 |
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Admiral in the Red Army
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"Everything I say is a lie"
"except that" "and that" "and that" "and that" "and that" "and that"
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#10 |
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FFR Player
Join Date: May 2005
Posts: 84
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To use the theory of "no paradoxes" through different theories of time travel:
(Theory)There are an infinite amount of time strands, each one containing a reality, and if you go into your own past, a new reality is formed, completely different from the reality that you normally exist in. This means that you would not be able to change time through the past, but you could get information to take to the present and change time. That means you cannot change your own past, so you cannot kill your own grandfather without creating a new time strand, which means you would still exist in the current frame of reality. Understand? That's a theory that would support the theory of "Cosmic Censorship", or removal of paradoxes. The paradox of the arrow is mentioned that once you reach a time that counts as Planck time (10^-34 second, not positive, but its really small), you would cease to be able to divide time by any amount, causing an end to that paradox. That also supports the idea of "Cosmic Censorship", as well. Both of what you said are paradoxes, but through the mentioned theory of "Cosmic Censorship", can be stopped.
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Bye. |
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#11 |
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FFR Player
Join Date: Dec 2005
Location: Canadia
Posts: 116
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It's not a paradox if it happens in real life, now is it?
Fire an arrow. It will hit. (Unless you're a really bad aim like me then you'll always hit the guy holding up the stand... heh... sry Jason...) And what would happen if you killed your grandfather, but your future father was already born? |
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