I often see it attributed to dark energy. I don’t understand entropy very well admittedly, but this explanation makes sense to me. So what is the difference between the expansion of the universe and entropy?
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While the two are related, they are different.
Entropy is how much energy is within the universe that remains in a usable state. Think pouring milk into a cup of coffee. Entropy describes them going from the state of two seperate fluids slowly mixing and then becoming equally distributed.
Expansion has the coffee getting slightly hotter as time goes on until it boils. Scientists are not entirely sure why this happens so they refer to it as “dark energy”
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