17th Law from The 48 Laws of Power

 17th Law from The 48 Laws of Power — Keep Others in Suspended Terror: Cultivate an Air of Unpredictability

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Core Idea

People crave predictability — it gives them comfort and a sense of control. If you act in ways they can always predict, they’ll grow confident in how to deal with you. But if you deliberately inject unpredictability into your behavior, they will stay on edge, cautious, and unsure of what you might do next. This uncertainty gives you psychological power over them.

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Key Points

1. Predictability Breeds Control (for Them)
   When others can read your patterns, they can prepare countermeasures and weaken your influence.
   Unpredictability Creates Fear
   Sudden, unexpected actions make people anxious and defensive — and in that state, they make mistakes.
   Chaos as a Weapon
   In politics, war, or even personal relationships, a degree of irrationality can make opponents hesitate, since they cannot plan against what they can’t foresee.
   Strategic, Not Random
   This is not about acting foolish or erratic all the time — it’s about calculated unpredictability to keep people guessing.
   Psychological Advantage
   Those who feel they cannot predict you will give you more room, avoid provoking you, and sometimes even overcompensate in your favor.

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Historical Example

Richard Nixon sometimes deliberately acted as if he might make rash, dangerous decisions (“the madman theory”) to pressure enemies into concessions, fearing he might do something extreme.

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How to Apply

Occasionally act in ways that break your usual patterns.
Delay decisions unexpectedly, then act decisively at an unexpected moment.
Introduce small, surprising elements in your work or negotiations to keep others attentive.
Never let people feel they have fully “figured you out.”

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In short:

If they can’t predict you, they can’t control you. Keep them in suspense, and you control the tempo.