I Built a Neural Network's First Neuron From Scratch — the 1958 Perceptron

Before transformers, before backprop, there was one neuron — Frank Rosenblatt's 1958 Perceptron. Build it and you understand the atom that every deep network is made of. This is Day 1 of DeepLearningFromZero: neural nets built from a single neuron up, no framework magic. Take inputs, multiply each b