Re: Symmetry of Time

From: Alex Green (dralexgreen_at_yahoo.co.uk)
Date: 08/20/04 

Date: 20 Aug 2004 04:38:24 -0700

Marcel LeBel <fakemail@hotmail.com> wrote in message news:<NI9Vc.1821705$Ar.1323344@twister01.bloor.is.net.cable.rogers.com>...
[snip]
> In the "vacuum" it expands in every direction, but in a gravitational
> field, it flows in an anisotropic way i.e. not equal in every direction.
> My take on this is that nobody ever declared that the explosion of the
> Big Bang was actually finished. Technically, we are still inside an
> explosion and that is .... your time epxanding.
>
>
> I used to call the rate of flow of time "time speed". Even if it makes
> sense,it only does so after some deep thinking. At first, it usually
> confuses people to do so..

Does 'length' flow? If time is a coordinate axis then it does not
flow. Observers appear to change position on the axis, a change of
position is registered as a change in the arrangement of things
relative to the previous arrangement in the observer's coordinate
system.

In modern physics time is a label for a coordinate axis, if time
occurs in several directions this would be equivalent to proposing
new, extensive dimensions and we would need to label these directions
'time1', time2' etc. You would need to propose a reason why these new
dimensions are not observed with measuring devices.

There is an argument for proposing that observers change position in
time so the observer might be considered to be 'flowing' in some way.

Best Wishes

Alex Green

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