The IPS as a defense against yourself. This lesson sits inside Module II — Design your defense — of Behavioral Finance, the course that anchors the Investing program. It is not a survey; it is the specific, working understanding of "Written rules" that the rest of the course assumes you carry forward.
- 01Define Written rules in the precise sense used across Behavioral Finance.
- 02Recognize when Written rules is the correct lens for the situation in front of you, and when it is not.
- 03Apply Written rules to a concrete case drawn from Design your defense, and defend the result in plain language.
- 04Connect Written rules to the adjacent lessons in this module without collapsing the distinctions between them.
The idea, stated plainly
The IPS as a defense against yourself. That single sentence is the whole lesson in compressed form. The rest of the reading unfolds it — what it means when the terms are taken seriously, where it comes from, and what work it does inside Behavioral Finance. Read the sentence, then read it again after the sections below; it should carry more weight the second time.
Why it belongs in Design your defense
Module II exists because the pre-commitments that hold in the moment. "Written rules" is one of the pillars of that module: without it, the later lessons either become memorization or lose their bite. Notice which earlier lessons this one leans on, and which later lessons will lean on it — the shape of the module is easier to see once you place this piece.
How the School of Financial Capability faculty use it
In practice, working school of financial capability professionals reach for this idea before they reach for a formula or a tool. It is a way of framing the problem so that the right question comes first. The mark of understanding is not that you can recite Written rules; it is that you catch yourself using it, unprompted, when the situation calls for it.
Common misreadings
The most frequent error is to treat Written rules as a slogan and skip the mechanics. The second most frequent is the opposite — treating the mechanics as the point, when the mechanics are only there to make the idea usable. Both errors collapse the same distinction, and both are correctable by returning to the one-line summary and asking what it actually claims.
- Written rules is a working tool, not a slogan.
- Its meaning is set by the module it lives in: Design your defense.
- Understanding is demonstrated by unprompted use in the correct situation.
- The adjacent lessons in this module are its natural context; read them together.
- 209 — Behavioral Finance, Module II: Design your defense — The parent module for this lesson. Re-read the module blurb after finishing the lesson.
- The Anabasis Academy — School of Financial Capability, Investing — The wider program this lesson serves; the Certificate in Investing (Practitioner tier). credential ultimately certifies mastery of ideas like this one.