Hulea Nicolae

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Parallel Earths existing in our Universe - consider running mathematical combinations over the finite number of particles that form a galaxy

There is no need for parallel universes to have parallel Earths, it is just a problem of distance. When considering that the Universe is infinite in space and omogen as laws, knowing that galaxies have a clear range of sizes thus a finite number of particles that have limited combinations, it is expected that not only somewhere over a distance that may never be overcomed there is a parallel Earth in a parallel Milky Way but that there is an infinite number of Earths, where you are doing exactly the same reading.

As far as we could understand of the whole universe so far there are few predictions:
- the theory of relativity describes perfectly the mechanism of the macro universe, when we looked further into the past with deep field photography the earlier stages were seen as expected in perfect accordance to our contemporary paradigm of the inflating universe.
- the shape is flat, look on the information regarding measurements of the microwave background that helped us define the shape. Knowledge that it is flat and combined with the above information basically it is saying that if you would be placed in any segment of the known Universe you would see around the same image as from Earth: stars, galaxies, clusters of galaxies, farther to each other when in the neighbourhood and closer as we look back into the past. Expectation is that over the event horizont, our visual range of 13,5 billion years, the Universe should be the same for an unlimited amount of space. The Universe is infinite in space but is not infinite in time thou, as there is a start and progression from there.
- if the universe is omogen and infinite in size, not empty but with the same density of galaxies as around us, and if we realize that regardless how big the galaxies are they are still finite and relatively isolated systems once they formed and the expansion is putting more and more space between each other, then we can assume that there are galaxies with exactly the same mass as the Milky Way

  • Nov 27 2013: You're working under the assumption that the universe is infinite.
    While I don't believe that theory has been disproved, I'm pretty sure its not confirmed either.

    Also note that as information travels at the very quickest in the speed of light, while there may be doppelganger planets out there, probability dictates they're so far away that it may yet take billions of years, or longer to find them, assuming they exist at all.
  • Dec 3 2013: We do not know the universe is infinite in size, only that it is very large. We guess that it means it is infinite.
    We do not know that "laws" are homogeneous. We have only seen apparent homogeneity in the tiny little bit of the universe we can observe.
  • Nov 29 2013: I have wondered about this argument of parallel earths. Are the calculations based on the atomic level and are relationships between particles considered? Also is the basis for the parallel earth hypothesis that the particles are identical or does it consider that any two hydrogen atoms are the same regardless of their properties?

    I tend to think of all particles as being unique which makes an identical Earth problematic.
  • Nov 28 2013: You have committed egregious assumption errors.

    1) The universe cannot be proven to be finite or infinite. We can only discern or debate on the "observable universe".

    2) Another exact copy of Earth would require an exact copy of our solar system which would require an exact copy of our galaxy which would require an exact copy of this universe.

    3) Your conclusion does not even follow logically from your premise(s). "there are galaxies with exactly the same mass as the milky way" - This statement is a gigantic nonsequitor. That means it has no logical connection to anything you've provided so far.

    In short, if you begin a problem believing 2+2=5, you're going to get the wrong final result.
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    Nov 27 2013: Probably not, but most likely so in the multiverse.
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    Nov 26 2013: So ... If the galaxies have the same mass then the number of combinations that those particles can form is finite even the overall number of combinations is astonishing. From that results that in a tiny tiny fragment of them may have formed exactly the same ancient cosmic objects as in the Milky Way. From those a tiny tiny sections have formed planets exactly like our own ... and now you know where i am going to.

    Even the whole Galaxy does not have to be the same mass, billion tons of matter may miss on the other part of the galaxy. what needs to be be the same, in an cause-effect universe, are the factors that actually influenced all the process that formed Earth and then life as we know it.