This is the free space wave model.
Assigning classical fluid models to the space
has for example there's compression but it is
reversed in the model as its eventual origin,
that it's denser everywhere instead of locally,
as the wave front or standing wave is, this
simple relaxation then for building the higher
order wave model with otherwise the properties
of the wave model, is an example of space
considerations for local properties.
This is similar in other classical models of
physics.
Then light speed is a constant then whether it's
"infinite" in the space has basically that it's
"half-infinite", the velocity, absolutely over
the space, where gravity's speed is infinite
in the space (in time).
Then as a medium the only way to apply pressure
to the field is from the beginning or end.
Then with
time came on forever
space goes on forever
the only site available is the now.
Locally, then, with with models of pressure
like oscillation, here about "things in time"
if not "time", per se, it would be similar that
there's not (courtesy conservation) the locally
totally conserved moments with "no time machines",
but one wonders what "large-scale" moments in
effect could establish a dynamic equilibrium with
phase quite large compared to the otherwise
placid usual local equilibrium.