Decision fatigue is a routing problem — what a 3,000-year-old Chinese framework taught me about choosing

By 3 PM the average knowledge worker has already made ~70 decisions. By the time the important one shows up — should I take this offer, should I confront my co-founder, should I move — your brain is out of premium fuel and running on fallback heuristics.

We usually treat this as a willpower problem. It isn't. It's a routing problem: every decision gets dumped into the same queue and processed with the same tired machinery.

The ancient version of a decision router

Working on a side project, I dug into Qimen Dunjia (奇门遁甲) — a Chinese strategic framework older than 2,000 years, originally used by military strategists to decide when and how to act. Strip away the mysticism and there's a surprisingly clean idea inside:

Before asking "what should I do?", classify what kind of situation you're in. The framework sorts situations into eight "doors" — states of action:

• Open Door (开门): greenfield. Go, initiate, expand.
• Rest Door (休门): recover, consolidate, don't push.
• Life Door (生门): build, grow, invest for the long term.
• Harm Door (伤门): friction ahead — fix or avoid, don't force.
• Block Door (杜门): information is unclear. Wait. Gather data.
• Scenic Door (景门): visibility, communication, marketing moments.
• Death Door (死门): endings. Close it cleanly, don't drag it.
• Fear Door (惊门): anxiety is loud but the risk is negotiable.

Notice what this does: it routes "should I email that investor?" away from generic agonizing and into a category — visibility move, Scenic Door — with its own playbook.

Why this maps to modern research

Decision-fatigue research (Baumeister's ego-depletion line, and its more nuanced successors) points at the same conclusion: people don't fail at deciding, they fail at deciding the same way regardless of context. Executives who pre-classify decisions — reversible vs. irreversible, one-way vs. two-way doors (thanks, Bezos) — report less fatigue precisely because classification offloads cognition.

Qimen's eight doors are basically a two-way-door taxonomy with 2,000 years of field testing.

Try it without the mysticism

Next non-trivial decision, spend 30 seconds on classification before deliberation:

1. Is this a go situation, a wait situation, or a close situation?
2. Is the information complete enough to deliberate at all? (If not — Block Door. Your job is data-gathering, not deciding.)
3. Is fear the actual obstacle, or just noise? (Fear Door: anxiety inflates risk estimates.)

Three questions. That's the router.

If you want the full framework rendered as a chart — I put a free tool up at JingMing Qimen. It generates the eight-door reading for your specific question and time. It doesn't tell you what to decide — it shows you which door you're standing in. The choosing is still yours.

What's your current decision queue look like? Which door are you in?