An interesting parafilosophic question:
- What is at the edge of the Universe?
- Are there nothing but nothing beyond the ends of the Universe? Is this nothingness going on forever?
- How is it possible that nothingness goes on forever?
We will probably never find out, because the universe is above all so huge that we will never know its most space, most of the billion galaxies, suns, planetary systems and exoplanets. Similarly to knowing the life that can exist on at least a thousand other exoplanets similar to Earth and existing in other planetary systems distant from our Solar System by millions of light years.
We will never know if this life exists in the greater part of the Universe that we will never reach. You can create statistical theories and very inaccurate statistics based on the "representative sample" of the Universe, that is, a small part of the Universe, which can be reached with the help of ever larger and more perfect telescopes and techniques for listening to sounds, however, even these "residual" information is no longer valid because they have reached Earth with many years of delay.
So for these paraphilosophical questions:
- What's on the edge of the Universe?
- Are there nothing but nothing beyond the ends of the Universe?
- Is this nothingness going on forever?
- How is it possible that nothingness goes on forever?
We can create many interesting theories, most of which we will never be able to fully verify.
Do you agree with my opinion on this matter?
Please reply
I invite you to the discussion
Thank you very much
Best wishes
There is no edge. Either it goes on forever or it wraps round like the surface of a sphere, but we can still only see a small fraction of the whole. Either way it has the same average density of galaxies, etc. as we see in our little "observable" patch. The Planck mission measurements give us a lower limit on the total volume and the CMB gives us a measure of the statistical variation of the density (about 10 parts per million).
The two-dimensional creature on the surface of large globe can see no end and no edge of "his" world. But we, three-dimensional creatures can see (from outside) the "end" and edge of his world. Just to extrapolate for one more dimension - we cannot see the end and edge of our world, but a four-dimensional creature (if exists) can see (from outside) the end and edge of our three-dimensional universe.
The 3D creature would see that 2D creature could move over his surface and encounter no "edge" to his world even though he is constrained to a finite universe but only where there exists the 3D embedding space. If the 2D surface is the entire universe and the curvature is intrinsic then no 3D creature could exist.
Current understanding is that cosmological curvature is intrinsic, there is no embedding manifold.
Dear Friends and Colleagues of RG,
Are there nothing but nothing beyond the ends of the Universe?
Is this nothingness going on forever?
How is it possible that nothingness goes on forever?
Please reply
I invite you to the discussion
Thank you very much
Best wishes
I am not quite sure about the edge what we know is universe expands continuousl. It would be lovely see the replies from the experts...
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