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Thread: Location of smart life in the universe

  1. #1 Location of smart life in the universe 
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    Hi everybody:

    I am not a scientist and I know very little about what I am going to ask so I apologize for my ignorance in advance.

    1) if the universe is been created aprox. 13 billion years ago and the earth 4.5 billion years ago there is a relation on the distance we are to the center of the universe?, are we located in the 1st 3rd closer to the center or the last 3rd?

    2) would knowing that help to have an approximate idea of where the smart life could be generated?, closer to the center or far from it?.

    Thank you.


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  3. #2  
    KJW
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    There is no centre of the universe.


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    There are no paradoxes in relativity, just people's misunderstandings of it.
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  4. #3  
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    The topology of the universe is not that simple. The universe is not generally considered to have a center. Consider the surface of a sphere like the earth. You can go in any direction you like without ever reaching the edge. The universe is thought to be like that, curved in a fourth dimension so that it has no edge or center.
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  5. #4  
    KJW
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    The requirement for life with regards to cosmology is the existence of heavy atoms formed from supernovae of earlier stars. Therefore, life required enough stars to have gone supernova so that enough heavier elements have become scattered throughout the cosmos and eventually accumulate to form rocky planets such as the earth near a star that is still in the prime of its life supplying energy to any life that forms.
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    There are no paradoxes in relativity, just people's misunderstandings of it.
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    Thank you,Is a new concept to me and little hard to visualize (from what I just read on Wikipedia).
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    Is it unscientific to think or relate more time to more possibilities of more developed life and our location on that scale origin of the universe vs. origin of earth?. The concept Is for example and older galaxy has more probabilities of smarter life than a newer galaxy?
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  8. #7  
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    No, this correlation is most likely true. But until we discover a different source of life, we cant confirm our models of "life appearance" as far as i know we re not 100% certain that life has appeared somewhere else, although its extremely likely.

    P.s: Somewhat obvious question but : if ET life exist, it should definately also follow the evolution theory within its planet right? No reason that i can see for it not to be using the same model.
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    If you can't explain it simply, you don't understand it well enough.
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  9. #8  
    KJW
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    Quote Originally Posted by Pablo Galin View Post
    Is it unscientific to think or relate more time to more possibilities of more developed life and our location on that scale origin of the universe vs. origin of earth?. The concept Is for example and older galaxy has more probabilities of smarter life than a newer galaxy?
    I'm inclined to think that the less reliant we are on rare elements, the better off we are. For example, I think that it is rather odd that a rare element such as iodine is required to perform what is essentially a signalling function (thyroid hormones).
    There are no paradoxes in relativity, just people's misunderstandings of it.
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  10. #9  
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    Quote Originally Posted by KJW View Post
    Quote Originally Posted by Pablo Galin View Post
    Is it unscientific to think or relate more time to more possibilities of more developed life and our location on that scale origin of the universe vs. origin of earth?. The concept Is for example and older galaxy has more probabilities of smarter life than a newer galaxy?
    I'm inclined to think that the less reliant we are on rare elements, the better off we are. For example, I think that it is rather odd that a rare element such as iodine is required to perform what is essentially a signalling function (thyroid hormones).
    Thank you KJW can you specify a little more your answer?, thank you.
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  11. #10  
    KJW
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    Quote Originally Posted by Pablo Galin View Post
    Quote Originally Posted by KJW View Post
    Quote Originally Posted by Pablo Galin View Post
    Is it unscientific to think or relate more time to more possibilities of more developed life and our location on that scale origin of the universe vs. origin of earth?. The concept Is for example and older galaxy has more probabilities of smarter life than a newer galaxy?
    I'm inclined to think that the less reliant we are on rare elements, the better off we are. For example, I think that it is rather odd that a rare element such as iodine is required to perform what is essentially a signalling function (thyroid hormones).
    Thank you KJW can you specify a little more your answer?, thank you.
    In living cells, particular elements perform a crucial role in terms of the chemical reactions that the cell needs to perform to utilise food, etc. For example, converting nitrogen to ammonia is a very difficult process because nitrogen is extremely stable and unreactive, especially under the mild conditions associated with living cells. But there are nitrogen-fixing microorganisms, and these rely on the presence of such elements as molybdenum because these are the very few elements capable of binding to nitrogen and activating it so that it can be converted to ammonia. In other words, there is little choice about these elements because of the requirements of chemistry. But a signalling function such as that of a hormone (or neurotransmitter) doesn't require any special chemistry and could quite easily be performed using only the common elements. But the demand for iodine requires that it be in our food, and its relative rarity means that there is a significant likelihood that the dietary requirements will not be met.
    There are no paradoxes in relativity, just people's misunderstandings of it.
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    Then what is the rare element you are talking about? the concept of more time more possibilities of smart life?, I mean for example if Andromeda is older than milky way there is more possibilities of smarter life on that galaxy and more alike conditions to our planet. I don't understand the relation with your answer.
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  13. #12  
    KJW
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    Quote Originally Posted by Pablo Galin View Post
    Then what is the rare element you are talking about?
    I was talking about iodine. But I also mentioned molybdenum. I contrasted their roles in living things.


    Quote Originally Posted by Pablo Galin View Post
    the concept of more time more possibilities of smart life?, I mean for example if Andromeda is older than milky way there is more possibilities of smarter life on that galaxy and more alike conditions to our planet. I don't understand the relation with your answer.
    The point I was making is that having more possibilities available doesn't make things better if the extra possibilities are highly risky.

    As for your original question, given that the earth has all the possible stable elements anyway, an older environment isn't going to make a significant difference.
    There are no paradoxes in relativity, just people's misunderstandings of it.
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  14. #13  
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    Thank your for your response,
    We know that our planet in the beginning had difficult conditions for life at this moment we have good conditions for life and most probably in the future will not be good conditions for this planet. I understand that you are pointing that time is not related with better conditions for life but I am thinking that more time means that more conditions for planets in different stages and possibilities of life as we know.
    I think probably we will have the possibility to change the conditions for mars and move there in the future, that is thanks to time, we may have time to develop the necessary technology and survive when earth conditions worsen.
    I think the same would happen to smart life in other planets more time = more time to develop technologies to survive.
    I am wondering if scientist are pointing to look to planets with conditions alike us in older galaxies rater than newer which may mean smart life that learn how to modify conditions on planets for life.
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