True, but the second law of thermodynamics states that the total entropy of an isolated system can never decrease over time. So I think the discussion at this point will revolve around whether a spacially infinite universe can be seen as an isolated system.
My original point was merely to use humor to caution against the use of "never", which breeds statements that are never true.
> the second law of thermodynamics states that the total entropy of an isolated system can never decrease over time
If you use this definition, then...
> I think the discussion at this point will revolve around whether a spacially infinite universe can be seen as an isolated system.
...it can't. "Isolated system" in the above definition of the second law means, basically, "a system that you can enclose in a box and measure its properties from outside". You can't do that with a spatially infinite universe. Actually, you can't even do it with a spatially finite universe, because even such a universe has no boundary and no "outside". So if you want to apply the second law to the universe at all, you need to use some other definition that can be applied to the whole universe.
Then one might also caution against the use of "never" in stating the second law of thermodynamics. It is a statistical law: the probability that entropy decreases in an isolated system is not zero, it is just extremely small. If you wait for long enough, it is bound to happen.
My original point was merely to use humor to caution against the use of "never", which breeds statements that are never true.