The Universe is best described, theoretically speaking, as .....??

Question

1. Split : Quantum at the micro-level, Classical at the macro-
     level.
2. Composed of branes in an 11-dimensional spacetime or 
     loops in a 4-dimesional spacetime.
3. A Hologram - we are the 4-D Boundary of a 5-D Cosmos.
4. A Computer Simulation. We live in an advanced Virtual     
    Reality created by scientists in the future.We are like the 
    sims.
5. Any combination of the above.
6. Something else which we will surely discover one day.
7. Something else that will forever remain a mystery and will 
    only be approximated by better but ultimately incomplete
    Models.

    Which do you think it is?

Anonymous · Accepted Answer

1)  Not exactly, I wouldn't really say it's split.  Classical mechanics is just the low energy, large distance limit of quantum mechanics.

2)  Who knows if string theory is actually true?

3)  I haven't heard any good 5-d theories lately that haven't been ruled out.

4)  Uh, sure, we're in the matrix

6)  That's pretty optimistic

7)  Yep, that's it I'm afraid.

ZikZak · Answer

1. Not really; it's quantum at *all* levels. Classical Mechanics is merely an approximation of the correct quantum emchanical behavior of objects.

2. Maybe, but this is string theory, which has no experimental support whatsoever.

3. No.

4. No. Violates Occam's Razor.

5. See above.

6. Maybe

7. There's no reason to believe that all models are necessarily incomplete. Indeed, that would violate the uniformity assumption of natural science because it would imply that there are no universally applicable laws of nature.

sankardivya1 · Answer

i go with the choice no 7 as and as we know about it more as and as it will get complex

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The Universe is best described, theoretically speaking, as .....??

3 Answers