there most certainly are absolutes. theres an absolute maximum amount of distance a massive object can travel through spacetime. theres an absolute maximum amount of mass/energy that can exist within a volume of space before an event horizon forms. universal constants which have dimensions are more or less measurable absolutes. differences maybe more apparent but that doesnt mean absolutes dont exist.
An absolute on the upper bound of velocity that a massless object can travel through space at maybe?
Although - I had it explained to me that the fabric of space was entering a black hole faster than light could travel, which is why light couldn't escape.
Which made me wonder - is light (the massless object) travelling, or is it space travelling and carrying things at different velocities.
Heh, i wonder what the mean free space between blackholes is?
Now, given that in quadrillions of quadrillions of years all black holes will evaporate and potentially even protons decay there could be a time in the universe where everything is mass less radiation.
I agree OP misspoke, but are we sure the time axis has no upper bound? Or that it doesn’t loop back round on itself? Or that it even exists meaningfully as an axis?
