[rodrigosetti]

Diego, this is really amazing.

The one gif where you throw a block into a stack reminds of some interesting property of the laws of classical mechanics: they are reversible. That is, the high entropy state after the block hit the stack, if you reverse the momentum of all bodies, will eventually evolve to the low-entropy state consisting of the stack and the block - which would look very improbable (like an egg unbreaking), but possible, nevertheless.

But, because of numerical approximation in computer code, if you actually try to do it (reverse the momentum), you'll notice the simulation won't quite go back to the state it was before.

So, here's a challenge for you: can you come up with a simulation that is deterministically reversible?