I thought that an equilibrium in which the energy is distributed evenly is a state which the universe can reach. In that state, there wouldn't be something that

I thought that an equilibrium in which the energy is distributed evenly is a state which the universe can reach. In that state, there wouldn't be something that shakes after a long while. But yeah, maybe energy conservation principles alone can explain that it keeps shaking. But it still feels so unintuitive that it doesn't slow down or cool down. I still have those other models in mind that the universe expands and then collapses or it keeps on expanding (which seems to be the case) or simply stop to expand but also doesn't collapse (and proceed to have maximum entropy level). Those were the three models I got taught. It seems that the universe is flat and will expand endlessly, so the model I thought is right (the universe just stops to expand) isn't true and my related assumptions (that maximum entropy levels get reached and absolute zero) are also not true (for some different reasons like quantum certainty and - it seems - even simple Newtonian mechanics). related SMBC: https://www.smbc-comics.com/comic/2014-06-02 https://www.smbc-comics.com/comic/2014-06-02