Quote:
Originally Posted by sk8rpinoi32
The problem I have is grasping the non-existence of anti-time when Richard Feynman through his diagrams shows that antimatter particles exist backwards in time.
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First of all, I don't think that "anti-time" is the same with "backwards in time". Even more, I don't think that the concept of anti-time makes any sense if "anti-" is used in the same sens as in "anti-mater".
As sillybear7 said
Quote:
Originally Posted by sillybear7
... However time is not a particle, just like space isn't. So talking about anti-time is like talking about anti-space, I don't think that either of these things exist even as mathematical 'tools'.
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Matter of fact they don't exist. Time is part of space-time and matter is a completely different stuff! Time, in a sens, is the 4th axis in a 4-dimensional "space" (3+1-dimensional space-time to be more precise).
So if you define "anti-time" to be "backwards in time" it's starting to make sense, but you will still be dealing with the classical concept of time (the orientation will be different).
So the analogy made by BigDon between "anti-time" and negative numbers is at an intuitive level correct. It is telling you that "thinking" at anti-time you are dealing with the same thing (the time-line). Just the direction will be different.