Entropy is a scientific concept to describe chaos. In the end entropy wins and it's continuously expanding since the big bang (the creation of the universe). All things get more disorderly with time except life. Energy cannot be created only transforms but when it gets transformed toncaloric energy there is no way back. Is the most useless form of energy and cannot be retrasnformed. This is entropy. Life is continuously fighting disorder. One of the properties of life is that it autoregulates. "Oh a piece of me went missing? Let's create a replacement if not we die" it's always self maintaining and fighting against entropy. But entropy always wins. Life always dies. And this disorder will one day "kill" the whole universe. All energy will become caloric and all life will die. This is the end of the universe. No more suns no more planets since it's also energy that maintains them. And so on
I feel so dumb I didn't understand anything