What you said was meaningless.
Here is what I said:
"It may be that an eternal universe has no maximum entropy."
why is that, "meaningless"? Because of this?:
"If the universe filled with matter and energy really had been going on for all of eternity, you would not be here. No heat would be flowing in the universe. That's how infinity works."
"Infinity", in this case, may also mean that, no matter what state of entropy you reach, you may be able to reach a state of higher entropy. A universe may be infinite in all dimensions and achieve this at all times in its history.