Think of a bag of full of dices, and empty it on the floor.
Now you will have a particular configuration of dices sitting on different faces. Now, take the average value of the dices’ faces. It will be (most likely) around 3.5.
Do this operation many times and on the large majority of cases you will be getting 3.5.
Why? Because every time you get a very very specific configuration for the collection of dices on the floor, but MOST of them are ‘random’, not particularly interesting.
This means there are many different ‘microstates’ for a general, overall ‘macrostate’ ( a seemingly random configuration).
What about some interesting cases? Like all faces showing 1? Well, for that particular macrostate there is a SINGLE specific microstate. Those are ‘special’ for exactly this reason: they are rare.
Now, imagine that your room’s floor wiggles, enough to sometimes roll dices. Imagine you start from an ‘all 1s” configuration. In a while, you’ll get a more random, probable configuration. Simply, is the most likely thing to happen.
If you want to get back to a more ‘ordered’ configuration, you’ll have to do it manually, put some work into that.
Imagine everything is made up of those dices: it’s now easy to see that world tends to evolve towards caos, and every ‘action’ you do on your system to get back to a more ordered version of it actually worsens the situation.
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