🚀 go-pugleaf

On May 1, 5:13 am, John Murphy
<london.accommodation.homest...@googlemail.com> wrote:
> On 1 May, 03:08, BURT <macromi...@yahoo.com> wrote:
>
> > If the train watches the stations clock go slow then when does it have
> > the time to age more?
>
> > Mitch Raemsch
>
> It never gets a chance to age comparatively, because by definition
> neither 'clock' - nor the train, nor the station knows what the other
> is doing, but it would not help if the train were to visit the station
> in some metrical sense, since that would entail either time gained by
> the train or lost by  the station and nor would it work the other way
> around since it would seem to neither 'clock' that they had lost or
> gained.
>
> All the same, demons are thought to be able to travel at light speed,
> so could in principle produce a twin-dial clock, available to both
> station and train, although it is unclear how that could be of help to
> anyone other than demons themselves unless they could become an
> interstellar ISP. And if they got a useful role, they might get free
> from messing things up and win a few prizes here and there.
> --
> Harbinger.

Is light speed fast enough for the demons to be able to do that job?
Wouldn't they need to travel instantaneously, without any time
elapsing on their own clock or on anyone else's clock, to the station
and back so they could adjust the auxiliary time dial? And they would
need to return very frequently, to keep resetting the time on the
auxiliary dial to the quasi-absolute time.

If the demons were to pick a speeding clock, with respect to the
station, for use as the quasi-absolute time, then the auxiliary dial
would lag behind the station clock.  If the auxiliary clock were to
run very slow then we would need to display milliseconds or
microseconds to see any useful passage of quasi-absolute time.

Taking more and more decimal places of seconds to be useful for slower
and slower clocks, at the limit of Planck time, assuming time is
quantised, the auxiliary dial might in this limit not be able to show
any passsage of time useful to us.  That is because one unit of Planck
time cannot be subdivided on the auxiliary dial.  What use is a dial
with only one tick every hundred years, say?  Just as well the clocks
will also have the local-time dial.