Hey 284, I love anything where parts interact and influence each other dynamically. For example water currents and waves (a friend of mine used to research how waves form – it’s fascinating!), bird swarms and ant colonies, quantum particles and molecules, even crowds of people… I think the world is full of these kinds of ever-changing interactive systems. If you took a picture of them at one moment in time you could say something interesting about them (for example, how many ants are outside the nest and how many stay at home on average?), but to really understand how they work you need to describe them in action!
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