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
The heat death of the universe isn’t the loss/destruction of all energy, it’s the death of all differences in heat.
That’s because nearly everything in everyday life requires some kind of temperature difference, either directly or indirectly.
Your car runs because it’s hotter inside its engine than outside. Your computer runs on electricity from the local power plant, which probably works by heating water and using that to power a turbine. And you run on food, which exists thanks to the enormous temperature difference between the Sun and the rest of the universe.
Once everything is the same temperature you can no longer do work and nothing interesting will ever happen again.
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