Entropy is just the measure of disorder or chaos. A good analogy is your bedroom. Over time it will get messier and dirtier.

>>16935958
> entropy never decreases in a closed system.
> the universe is a closed system.
A better question would to ask how / why the universe started with such low entropy.

>>16935958
The universe isn't an entirely closed system from memory. Unique physical forms can still traverse over from other universes. It happened to me..

>>16936030
>Over time it will get messier and dirtier.
But that takes energy input to happen

>>16936238
Even if your room was made of just pure lead it would eventually decay into fundamental particles (given an infinite amount of time).

>>16935958
>there is a fixed amount of energy in the universe
>over countless eons, a greater and greater fraction of it will become unavailable for driving physical interactions.

They leave babies' diapers in a dark pit for dark matter to consolidate it back into form.

Energy isn’t fixed. It’s redshifted out of existence constantly

>>16935958
Entropy is the distribution of energy. The amount of energy can be fixed while the energy disperses. We observe energy spiontaneously disbursing and never the opposite. What don't you understand?

>>16935958
Yes the entropy of the universe doesn’t increase or decrease.
The universe so far as we can see it is isolated