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Extraterrestrial Life

This is a discussion on Extraterrestrial Life within the Science & Technology forums, part of the Debates & Discussion category; Originally Posted by Danger I have a hard time arguing against either of those guys. Me too! Einstein is also ...

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  #21  
Old 04-07-08, 09:59 AM
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I have a hard time arguing against either of those guys.
Me too! Einstein is also the basis of my belief that there are multiple dimensions.

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For years, Einstein hoped to unite the contemporary ideas of relativity and quantum mechanics. Yet, he could not unite these theories because he limited his parameters for a unifying equation to the four dimensions that humans consciously experience. The first physicists to truly pursue the theory of additional dimensions were Kaluza and Klein. They noticed that if a fifth dimension were to exist in the universe, there would be fields of angles between all of the existing dimensions. By applying this to Einstein’s geometric model of gravity, Kaluza and Klein noticed that gravity, the force that relativity is concerned with, and electromagnetism, one of the forces that quantum mechanics deals with, showed similar properties. Therefore, by adding a fifth dimension to the universe, the same equations that apply to electromagnetism could also apply to gravity. It was later shown that not only is one additional dimension required for this link to be solidified, but six more dimensions. Even further down the road, it was discovered that the formulas used to determine this number (which are actually mathematical methods of approximation, since the actual formulas are unknown) we slightly off, resulting in yet another necessary dimension. Therefore, our three physical dimensions plus one time dimension plus seven additional dimensions results in there being eleven dimensions!
http://library.thinkquest.org/04oct/01740/string_2.html
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Old 04-09-08, 02:54 PM
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Default Re: Extraterrestrial Life

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Originally Posted by gillibean View Post
E.T., is he out there somewhere or is it all just a fairy tale?
My strongest instincts point me towards "no". However, if "aliens" or any other advanced form of life exists elsewhere, I have even stronger instincts pointing towards them being very unlike us physically.

Do I think life itself exists somewhere? Instinctively no, but it's not anything more than a 60-40 wager. I find it fairly possible bacteria or some other microorganisms exist elsewhere but not being in the proper environment to evolve.

(Although, that does suggest an error in speculation with natural selection)
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Old 04-09-08, 03:02 PM
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My strongest instincts point me towards "no". However, if "aliens" or any other advanced form of life exists elsewhere, I have even stronger instincts pointing towards them being very unlike us physically.

Do I think life itself exists somewhere? Instinctively no, but it's not anything more than a 60-40 wager. I find it fairly possible bacteria or some other microorganisms exist elsewhere but not being in the proper environment to evolve.

(Although, that does suggest an error in speculation with natural selection)
The problem with that is the assumption that life can only exist as we know it now. Under the conditions here on earth , life as we see it now in other places is very improbable. If you remove your assumptions about what life must be and the conditions that it must have to develop, life elsewhere is nearly a certainty.
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Old 04-10-08, 10:23 PM
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Default Re: Extraterrestrial Life

I don't assume that. If you're basing that off the second part of the post, I'll explain what's going on.

"I find it fairly possible bacteria or some other microorganisms exist elsewhere but not being in the proper environment to evolve."

I said that I don't think "aliens" exist. However, I am specifically talking about the chances of known life-forms existing, that's all. There's a huge difference between assuming something must be X if it exists and placing a guess on the chances of X existing.
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Old 04-10-08, 11:53 PM
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Default Re: Extraterrestrial Life

Of course the chances of "known" life forms are ridiculously low. We are one tiny speck in the universe and look how many different kinds of life we have here. The possibilities for other kinds of life goes into numbers only mathematicians know. I don't get why you would limit your speculation to lifeforms we would recognize.
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Old 04-11-08, 01:25 AM
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Default Re: Extraterrestrial Life

Where does it say I am? I said I doubt "aliens" exist. I did not at any point specify what I believed "aliens" to be or to not possibly be. Perhaps I should have been more specific, but there is still no sufficient cause to say I was limiting my idea of "aliens" to anything in specific.

Also, no mathematician knows these possibilities; the only way it's possible is if they have in fact found "aliens" somewhere--in which case it's 100 percent possible. ( self-evident)

If you're working with 0 relevant information, you can barely have good speculations, much less be certain. What's the evidence that we can work with-- planetary atmospheres? We don't know that some potential life can't exist and survive under different conditions from earth; all lifeforms outside of earth are all hypothetical in equations.
"odds" mean nothing. If you hear any estimations, disregard it completely. It's baseless nonsense.
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Old 04-11-08, 09:59 AM
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Default Re: Extraterrestrial Life

I meant only that the the numbers go so high as to be words only mathematicians are familiar with. It seems you are limiting your views because you repeatedly say alien in reference only to life we would recognize. What about life wouldn't recognize? What of the possibilities there?
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Old 04-11-08, 10:02 AM
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Default Re: Extraterrestrial Life

Can you give an example of life that we wouldn't recognize? I don't see how it would be too hard to recognize life.
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Old 04-11-08, 10:08 AM
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Default Re: Extraterrestrial Life

It wouldn't be too hard to recognize forms similar to those on earth. Zeus only knows what else is out there. Gaseous clouds that are alive, life forms smaller than electron microscopes can see, the whole point of what I was saying is that there are no examples because it would likely beyond anything we've ever imagined.
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Old 04-11-08, 03:14 PM
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Default Re: Extraterrestrial Life

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Can you give an example of life that we wouldn't recognize? I don't see how it would be too hard to recognize life.
Go to a crack den.

Yeah, so scientists predict that in a few years we will have found a planet like Earth. If there is water, that water may have gotten there from life growing up there, though at the least you of the last generation can fulfill your dreams of an outer space resort. Just kidding. I doubt we could survive there or get there in less than forty years via craft.
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