ConeheadAI · leftover lesson
SNK3-001 · Curriculum How-to
Neural net layers — start at 2:25 (not the beginning)
L0–L1 · Curious–Hands On (bootstrap — system rebalances) · ~4m
Look for this insight
A neural layer is not a database of facts — it is a weighted mix of inputs passed through a simple function. Look for that picture of stacking layers.
Lesson hook
You are not watching a 19-minute lecture today. At 2:25 in 3Blue1Brown's classic neural-net video, Grant starts the 80,000-foot map: what a layer of neurons is doing with numbers. One click = that moment. Stay ~2 minutes unless you opt to continue.
Do this now
Click the snack link (opens at 2:25). Watch until ~4:25. Then answer the MC in your head: A neuron's output is best described as (A) a stored fact from Wikipedia (B) a weighted mix of inputs passed through a simple function (C) a database query (D) a random coin flip. Your completion signal: pick A/B/C/D.
Completion check: mc_choice_B_or_equivalent
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