Math Foundations · math·0 · optional — later units don't wait for this · side-quest in layer I
Visual priors
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Prerequisite priming, not a step of the argument: pure intuition-building via 3Blue1Brown's visual series and Colah's Visual Information Theory. Do it before anything else — it's the single most leveraged three hours here — but no wall of the spine depends on it.
Context
A side-quest before the climb — pure intuition-priming, deliberately outside the argument: no wall of the spine depends on it, but everything downstream reads faster with these pictures installed. Seeing a matrix as a transformation, a derivative as local slope, entropy as surprise: these are the mental images that make Gödel, Bell, and Shannon readable later.
How to read it
Anchor. 3Blue1Brown, Essence of Linear Algebra (15 videos, ~3 hours). Watch all of them. The single most leveraged math investment you can make — everything on every path assumes you can see a matrix-vector product geometrically.
Companions. Essence of Calculus (12 videos) and, as an optional bonus, the Neural Networks series. Plus Colah's Visual Information Theory blog post — one sitting, and it doubles as the doorway to the Information path.
Don't take notes; rewatch. These are priors, not facts — and this is priming, not a step: the argument proper begins with the foundations crisis.
next action
done when you can
resources
- ●Essence of Linear Algebra— 3Blue1Brown (Grant Sanderson)anchor · video series
- ●Essence of Calculus— 3Blue1Brown (Grant Sanderson)companion · video series
- ●Visual Information Theory— Christopher Olah (Colah)companion · blog post
- ○Neural Networks— 3Blue1Brown (Grant Sanderson)optional · video series
sessions
unlocks Everything else reads faster with these priors installed. Not a gate — just the best possible first three hours.