Imagine you want to make brownies. You start with a clean, orderly kitchen and neat bowls of ingredients. As you mix things, your kitchen gets messier, and so does your oven and the brownie pan. And then when you eat the brownies you make even more mess.
When you’re done, you have more mess than when you started: but you also got brownies for a while.
The universe is kind of like that. Big, low-entropy mixes of matter and energy are slowly making the universe into a high-entropy place. But along the way, we temporarily get cool stuff like stars and planets. The local entropy is reduced temporarily, but the *total* entropy still increased.
At the end, it’ll all be high-entropy: but we also got planets and stars and life and stuff for a while.
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