The member the shell was extracted from: five stages bind a single neuron's figure, the four steps and the formula — click a step to trace it; the evidence is a training run, the ladder is four architecture eras on log-scale parameter counts.
Passing little notes down the line
Imagine a room full of tiny workers holding strings. When a cat picture comes in, the first workers shout what they spot — pointy ears! whiskers! — and pass notes to the next row. The last row reads every note and yells the answer: cat! Each time they get it wrong, they swap a few strings around so the notes come out better next time.
It's a team game that gets sharper with every round.
ŷ = σ(w₁x₁ + w₂x₂ + w₃x₃ + b)
Perceptron
1958
~1K PARAMS
CNN
1989
~1M PARAMS
LSTM
1997
~10M PARAMS
Transformer
2017
10⁸–10¹² PARAMS
Parameter bars are log-scale — each step is roughly 1,000×