Einstein's book relativity
began with an explanation of "truth"
which could be considered "absolute reality" and which made use of assigning coordinates... defining terms.
There are levels of abstraction in relativity
1) subjective experience of time, after which we consult a clock
2) the clock and calendar, which are based on local astronomy (and our clocks can now be synchronized by atomic decay measurements)
3) clock or calendars used by other residents of the universe based on their own reference points,
which we assume would calibrate also to atomic decay measurements the same as our own measurements.
The search for absolute reality would probably
include universal time, and apparently Dr. Dick
has universal time as a goal/feature in his math.
Whether or not you can precisely predict the future behavior of chaotic systems such as weather or as Harv suggests, next Sunday's game,
it might be useful to know if atomic clocks everyhere in the universe ARE calibrated.
At each level of abstraction, we are left with
the question of where its defining terms are anchored. A far as most folks are concerned,
clocks and calendars ARE absolute realities for some human activities like human business contracts and historical reference.
Absolute reality can occur wherever context
is defined absolutely. The problem of absolute reality for the wider universe is a problem
whose solution is needed in order to confirm
certain features of relativity.
Cicero used to end every speech with,
"Carthage must be destroyed." I am only a
poor resident of the 21st Century so I
do not share Cicero's vision. I will, however,
say in advance,"Yanniru, that is not pertinent."