how would heat death at the end of the universe work if energy cant be destroyed or created?

Question

I learned about the energy only changes form recently and was wondering how heat death in the end of the universe would work because “all energy is lost from the universe”

In: Physics

Answer 1

The heat death is less about a specific temperature and more about the differences in temperature or energy no longer being meaningful enough to fuel systems that produce energy in the form of “work”, or the transfer of energy from one system to another. I’m not smart enough to go into more detail from there though..