Strategies · Lesson 16 · Beginner
Via Negativa and the Journal
You internalize the cross-strategy anti-mistake rules and keep a pre-trade gate that separates process from outcome.
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From the prohibition list to the gate
The Taleb principle of subtractive knowledge and the derivation of the prohibition list are in the risk management lesson Via Negativa (r-via-negativa-verbotsliste). Here it is about application: using the derived checklist as a pre-trade gate for your setups.
KISS according to Goodman: RSI, MACD and stochastic are all derived from price. Their confluence is one data point three times, not three reasons. A robust decision needs only one reason.
Check off the pre-trade conditions before you open.
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The key points at a glance
- The most effective risk management is a list of prohibitions, not a list of clever setups.
- Never without a stop, never loosen the stop, never average in, never all in.
- A robust decision needs only ONE reason.
- Write down the setup and rationale before the trade, separate from the outcome.
Deep dive
The anti-mistake rules every Market Wizard agrees on
Schwager interviewed dozens of completely different traders, and almost all of them independently name the same prohibitions. These overlaps are the lesson, not the success stories.
- Never add to a loser: Jones' first and Gelber's most important rule.
- Never meet a margin call, liquidate the worst position first.
- The first loss is the cheapest, getting stopped out is not a failure.
Why three indicators are not three reasons
RSI, MACD and Stochastic all pointing the same way feel like confirmation, but they are one data point viewed three times, because all of them are derived from price. Top traders rarely use more than moving averages and volume.
The best self-test is the devil's advocate question: would I open this setup right now the exact same way if I had no position and no opinion? If you honestly say no, you are only looking for confirmation.
The pre-trade gate: separating process from outcome
Elder makes three numbers mandatory, written down BEFORE the entry: entry, target, stop. Without them it is not a trade, it is a gamble. The checklist acts as a gate that replaces willpower in the moment of temptation with a decision made in calm.
- A good trade can lose money, a bad trade can make money.
- A winning trade with a broken rule is a bad trade.
- A journal column for rule followed exactly, kept separate from the profit column.
- A follow-up chart weeks later replaces team feedback for the solo trader.
Sources: Taleb, Schwager, Douglas, Kahneman, Goodman
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