If entropy is always higher in the future, what happens if two

>>8266021
The fast guy measures lower entropy because it takes longer for information to reach him.

>>8266021
Doesn't temperature assume thermal equilibrium anyways?

>>8266059
How does that affect the situation?

>>8266048
Can you elaborate why this would be the case?

flyby entropymeter

>>8266021
Addressed in general relativity. The magic with time stuffing happens during the acceleration. And you would likely not be able to keep entropy the same during acceleration to velocities close to c relative to anything anyway.

>>8266341
but the observers measure the entropy after having accelerated to the speeds in question

>>8266157
Entropy is the measure of the increase of energy distribution in the box.

When moving at relativistic speeds, it takes longer for information to be transmitted from the box to the traveler, they see the system evolving slower than the person in the same frame as the box.

>>8266709
Why doesn't the energy distribution change when the dimensions of the box change?

>>8266709

But then say you had a spaceship travelling at near light speed, would that mean that it could continue going long afterun heat death? Assuming it had enough fuel that is.

The traveler at v ~ c sees the events at different times vs the stationary one. If both keep a log on the observations with universal time in mind they will write down the same things.

>>8267467
Because the dimensions of the box lower the average energy density everywhere in the box uniformly. >>8268324
No, eventually expansion will occur everywhere ftl so you would experience the death later, but it would still happen. Also, op pic only works because of the difference in frames of reference. There is no such thing as a universal frame of reference.