Sun Tzu Ch. 1: Laying Plans

"War is a matter of vital importance to the state; the province of life or death; the road to survival or ruin. It must be thoroughly studied." — Sun Tzu

Military Context

The opening line sets the tone for the entire work: war concerns the survival of the state and must never be undertaken lightly. Before a single soldier moves, the commander must calculate in the temple — the practice of "temple reckoning."

Sun Tzu names five factors that must be assessed to forecast the outcome:

1. The Way: ruler and people united in purpose
2. Heaven: night and day, cold and heat, the cycle of seasons
3. Ground: distance, danger, openness, the terrain of life and death
4. The General: wisdom, integrity, benevolence, courage, discipline
5. Method: organisation, chain of command, logistics

The ordering is not arbitrary. The Way comes first — before any tactic is discussed, ask whether this fight is worth having and whether it is supported. Method comes last because it determines whether the other four can actually be realised.

Note what Sun Tzu says next: "One who calculates many advantages in the temple before battle will win; one who calculates few will lose." The outcome is decided in the calculation before the fighting — the battlefield merely verifies it.

The Wall Street Translation

Trading is modern warfare and your capital is your army. Entering without a plan is the shortest path to financial ruin. Temple reckoning corresponds to your pre-trade analysis and review.

Mapping the Five Factors

1. The Way (macro trend): are you aligned with the underlying macro regime, or fighting the central bank? Direction must match the market's dominant narrative
2. Heaven (timing and cycle): the market's weather — volatility levels, earnings season, the calendar of major data releases
3. Ground (asset and structure): the terrain you choose to fight on. Small-cap biotech is dangerous ground; large-cap blue chips are well-defended ground
4. The General (you): do you have the discipline to honour a stop? The courage to act when your signal fires?
5. Method (risk management): position sizing, leverage, and trading rules. Without them, even a good strategy eventually blows up

What Temple Reckoning Actually Means: the Outcome Is Decided Beforehand

This is the chapter's most skipped and most important point.

Most traders concentrate their effort after entry — watching, adjusting, agonising over when to exit. Sun Tzu argues the opposite: the work that actually determines the result happens entirely before you enter.

An executable translation: if you cannot write down your rationale, target, stop, and position size before clicking buy, the reckoning is not complete and the outcome will turn on luck and your emotional state at the time.

This is the other half of "flawless execution" in Trading in the Zone Chapter 4 elsewhere in this library: Douglas argues execution must be mechanical, and Sun Tzu argues mechanical execution presupposes the calculation was already done. Without both, discipline has nothing to stand on.

Why All Five Must Hold

Sun Tzu does not say three out of five is enough.

The five factors multiply rather than add: a serious deficiency in any one cancels the advantages of the other four. A macro tailwind with oversized positions (Method failing) still ejects you on a normal pullback. A perfect setup with a broken mental state (General failing) means you will not execute the plan.

This explains a common confusion: "my analysis was right and I still lost money." Analysis covers one or two of the five; the outcome is determined by all of them.

Actionable Trading Rules

1. Calculate before fighting: never enter on impulse. If you cannot state the rationale, entry, target, and stop before buying, do not trade.
2. Check all five before sizing up: is the macro aligned? Is the timing right? Is this the right asset? Is my head clear? Is the size appropriate? Act only when all five hold.
3. Avoid bad ground: when conditions are chaotic or the instrument too complex, the best possible calculation is not to fight. Cash is a position.

Relevance to a Retirement Portfolio

Temple reckoning is worth more to a retirement investor than to a trader.

Retirement planning is itself one very long reckoning: before you retire, settle the savings rate, the allocation, the withdrawal rate, and the plan for a bad market. Once withdrawals begin, room to adjust shrinks sharply — precisely Sun Tzu's "calculating before the battle."

The five factors map directly: the Way is your long-term financial objective, Heaven is whatever market you happen to retire into (uncontrollable), Ground is your allocation, the General is your behaviour during declines, and Method is your withdrawal rate and cash buffer.

Note that only Heaven is entirely outside your control. Sun Tzu's framework gives the answer: since Heaven cannot be controlled, you must leave margin in the other four — which is exactly why a conservative withdrawal rate and a cash buffer exist.