Artificial Intelligence Factory on Instagram: "The chain rule is a key idea in calculus that explains how changes flow through a sequence of functions. Think of it like a domino effect: if one variable affects another, and that one affects a third, you can multiply their rates of change to see the overall impact. In artificial neural networks, this idea is crucial. Each layer transforms its input and passes it forward. When training the network, we use backpropagation to update the weights. The