# Why universe appears to have only 3 spatial + 1 time

Discussion in 'Physics & Math' started by Nas, Jan 24, 2013.

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1. ### NasBannedBanned

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Because one can be observed at a time.

3. ### NasBannedBanned

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Dimension might be an illusion.

5. ### quantum_waveContemplating the "as yet" unknownValued Senior Member

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You're probably posting this in the wrong sub-forum, but considering that you have tried to get responses to your philosophy in other sub-forums, I guess I can understand you trying it here. The phrasing of your OP raises a question that you could clarify for me. When you say "because one can be observed at a time", are you referring to a given three dimensional event at a point in time?

7. ### wellwisherBannedBanned

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We can model the universe, in many ways, and with as many dimensions as you want. But simplicity is closest to perfection, and 3 plus 1 is the minimal set we know of, so far.

8. ### RJBeeryNatural PhilosopherValued Senior Member

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This statement doesn't make any sense. If we could observe 2 at a time, how many dimensions would the universe appear to have?

9. ### NasBannedBanned

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5. That is all.

10. ### RJBeeryNatural PhilosopherValued Senior Member

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So are you trying to say that we can only observe one temporal (time) dimension at a time? And if we were capable of observing 10 dimensions at a time it would then be 10 time + 3 space = 13 dimensions? If so, why would we be restricted from only observing one temporal dimension at a time?

11. ### NasBannedBanned

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I was referring to both spatial and time dimensions so I partly agree with you. I'll work out another response that objectively goes into more depth.

12. ### NasBannedBanned

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If we could observe all dimensions at once we would enjoy a kind of omniscience.

13. ### NasBannedBanned

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If all times were one we could observe the entire universe.

14. ### RJBeeryNatural PhilosopherValued Senior Member

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I see, then I think what you mean to say is that we can't observe more than a single point in spacetime, not that we can't observe more than one dimension at once. I agree with you, if we could observe "all points in spacetime" then we would be omniscient.

15. ### James RJust this guy, you know?Staff Member

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Moderator note: Nas has been banned as a sock puppet of a previously-banned user.