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Stratagem 20 · Chaos Stratagems

混水摸鱼

hùn shuǐ mō yú
Fish in troubled waters

Confusion favours the alert. When a situation is muddled — a rival in turmoil, a market in flux, rules in transition — the calm operator who moves deliberately through the murk takes gains no one is guarding.

A net held ready over churned water, silt clouding in slow curls.
A net held ready over churned water, silt clouding in slow curls. Artist’s impression, drawn for RECATOOLS. No illustration of the Thirty-Six survives from antiquity — the collection itself only surfaced in the 1940s. How the Thirty-Six reached us →

The principle

Order makes ownership clear — everyone can see what belongs to whom and who guards it. Disorder blurs that, and in the blur, attention scatters and defences lapse. This stratagem is composure amid chaos: while others are disoriented by the confusion, you keep your head, read the situation clearly, and reach for the openings the turmoil has created. You may exploit existing confusion or, more aggressively, deepen it — but the essence is that clarity of mind in murky water is itself the advantage. The line to watch is your own footing: the same murk that hides your move can hide the ground giving way beneath you.

Historical origin

The phrase is proverbial — a fisher stirs the water so fish, blinded and disoriented, are caught by hand. As a stratagem it names the practice of profiting from disorder, a recurring pattern in the Warring States period, when smaller states repeatedly seized territory and advantage while larger powers were consumed by internal succession crises and factional strife. The essence is not the chaos itself but the discipline of staying clear-eyed within it.

Applied today

Business

When an industry is thrown into disruption — a regulation change, a platform shift, an incumbent's collapse — the prepared player who understands the new rules first captures customers and talent while everyone else is still disoriented.

Everyday

But keep your own footing. Acting decisively in chaos is powerful only if you actually see clearly; if you're as disoriented as everyone else, the murky water hides your own missteps too.

In practice

Invented scenarios showing this stratagem at work — illustrations, not reports of real events.

AI & Technology a company mid-platform-migration

Approved at migration speed

Through a six-week migration, exception requests were approved quickly because during a migration everything is an exception. Four teams connected external model endpoints in that window, two of them to a provider with no agreement in place. Every approval was logged and every one read like all the others. Nobody had waived the process; the process had simply been running at migration speed.

Use it Hold approval standards fixed during disruption, and re-review anything cleared inside a change window once it closes.

Business & Strategy a company mid-reorganisation

Signed during the reshuffle

For six weeks nobody was quite sure who approved what. Three commitments were signed in that window which would not have survived an ordinary review: a long tenancy, an inflated tooling renewal, and a retainer with no defined scope. Each had a plausible sponsor and nobody acted improperly. The gap in the approval chain had simply made the abnormal look routine.

Use it Name an interim approver on day one of any reorganisation — ambiguity about authority is when weak commitments get signed.

Cybersecurity a company mid-migration

The request during the outage

During a chaotic weekend cutover, an urgent message asked the help desk to reset access for a colleague locked out by the migration. It was plausible, because dozens of genuine versions of that request had already arrived. Confusion had temporarily made the abnormal look ordinary. The reset was granted in under four minutes.

Use it Tighten verification during disruption, not after — chaos is precisely when a false request looks routine.

Marketing a rival service suffering an outage

Posting during someone else's bad day

Within an hour of a competitor's failure, three brands posted knowing jokes and a discount code. Engagement was excellent. Four months later one of the three had an outage of its own, and the same accounts reposted its old jokes back at it with the timestamps intact. The archive turned out to be the cheapest part of the campaign.

Use it Compete on your own merits during a rival's bad day — opportunism is archived, and the archive outlives the traffic.

🔤 Look up this idiom: 混水摸鱼 (成语词典)

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