Backpropagation: the ultimate party trick for neural networks.
What is backpropagation, you ask?It's a way to make your neural network say "I'm sorry" to its mistakes. By adjusting the weights and biases of each layer, you can train it to be less wrong, more often.
Think of it like a game of "Guess Who" with your neural network. You show it an image, it makes a guess. You tell it "nope", it adjusts its guess. Repeat ad nauseam until it gets it right.
Next lesson: Activation Functions AANW: the ultimate weight-gaining supplement