[Physics] "True" time

[Thomas Goodey]

On 28 Oct 2016 at 12:00, Ilja wrote:

> In modern words, absolute time is a time parameter, or time
> coordinate, used to define the whole theory in terms of some
> evolution equation.  It is not defined by some measurement.

So... absolute time has no definition, and cannot be 
measured, and accordingly intervals of "absolute time" 
cannot be assigned numerical values? What is its meaning, 
then? Is it a pure fantasy? Is it just, how excited your 
body feels at the time? Not even quantified?  It seems to 
be completely meaningless, according to your "explanation".

> apparent time, or clock time, is what we measure, instead,
> with clocks, and use instead of true time.

We haven't got much option, do we, since true time cannot 
be measured! Thus, it's not a question of "instead". We 
seem, very sensibly, to be ignoring a fantasy and rather 
dealing with an actual physical parameter.

Thomas Goodey
****************** 

But remember, please, the rules by which we live. 
We are not built to comprehend a lie. 
We can neither love, nor pity, nor forgive. 
If you make a slip in handling us you die.  

Rudyard Kipling, 'Secret of the Machines'