Does nature act on an other point of view.

[Kedas]

Does nature act on an other point of view or do you only experience it different from an other point of view.

 

I assume nature never acts on a point of view and every point of view is different and all equally true.

 

but if nature never acts on a point of view then how can the twin age be different at the end? There is no point of view to give them an equal age again.

 

(twin age: about the twin paradox)

[timo]

One of the fundamental axioms used in general relativity is that nature does not care about the coordinate system (=point of view) you chose to describe it. So your assumption is right.

 

The twins paradoxon has kind of a different origin (plus: It´s no paradoxon if you handle it correctly): Both twins take two different paths from point A to B. Their age is actually nothing more than the lenght of the path they take (measured in a hyperbolic space with an indefinite metric, but that´s not the point here). There is no reason why two different paths must have the same length so there is also no reason why they must have the same age (=lenght of the path) after having travelled from A to B.

 

And to close this post: Since the length of the path does not depend on the coordinate system you chose (I admit that it might be hard to imagine a length of a path without a coordinate system, but why should nature need one to work ... ) the difference of the length is also independent of the coordinate system and so is their age-difference.

[Kedas]

I think I got it now

The problem is that most people simplified nature and then expect that it would work that way.

 

Like A. Einstein one said:

"Make everything as simple as possible, but not simpler."