Neural Network, Explained in Plain Language A new explainer describes neural networks as machines that learn by adjusting millions of dials through repeated forward and backward passes, starting with random guesses and refining until they work. The piece, written in plain language, emphasizes that a neural network is simply dots holding numbers and lines carrying them, with each line's dial determining its importance. Neural Network, Explained in Plain Language A machine that learns by getting things wrong. Dots and lines Dots hold a number. Lines carry it to the next dot. That's the whole machine. In one end, out the other Numbers go in one side. An answer comes out the other. Every line has a dial Turn a dial up and that line matters more. A big network has millions of dials. At first, it's wrong All the dials start at random. So the first guess is nonsense. So nudge the dials Every dial that pushed toward "dog" gets turned down a hair. A hair. Not a lot. Now do that a million times Forward, then backward. Forward, then backward. Do that a million times and the dials settle somewhere that works. That's learning.