Educational publication only. Not investment, tax, or legal advice. No fiduciary relationship. Hypothetical / paper results do not indicate future performance. Full disclaimer
This classroom is an educational publication, not advice. Study tools, labs, and paper results stay hypothetical. Read the disclaimer.
Phase 4 of 5
A lean can lose to a gate. Paper stays paper.
See how a lean can lose to a risk gate, and why paper stays paper. Learn to refuse a ticket. Part of the 22-lesson GESH Learn investing course.
See a process refuse an idea. A failed gate is not a stock grade.
Eight checks that can refuse an idea before it becomes anything. Seven of them are protecting you from yourself, and a working set refuses about a third of the time.
13 min
Five constructive leans, zero fills. Not an unlucky day — the arithmetic says a capped process overrules its sizing formula across the entire range anyone would operate in.
13 min
Borrow the desk’s cadence as a study week — never as autopilot.
Staleness is measurable, not a mood. The band around an old quote is P·σ·√t — which gives you a threshold you can derive, and shows why one global setting is wrong across a whole book.
13 min
The closing lesson turns the course's own auditing procedure on the course. Spacing is a good bet, the schedule is a guess in the right shape, and the only claim you can verify is the one you run yourself.
13 min
Journal a motion. Label it hypothetical forever.
A paper blotter's two largest distortions are invisible from inside it, and both are arithmetic. A strategy with a true edge of zero can journal at a 58.8% win rate without anybody lying.
12 min
A “1% fee” takes 28.3% of the gain over thirty years, and takes proportionally more when returns are lower. Costs are the only numbers in this course you can treat as more real than a forecast.
12 min
Recency is not a lapse of attention — three months of data pins a drift to ±32%, and 256 years are needed to tell 7% from 5%. The sample does not contain the answer.
12 min