Inphronesys · Strategy That Lasts

Fog of War, Fog of Market

Adjust how fast information arrives, how costly waiting is, and how much you already know. The chart shows where commit beats wait for certainty — and what waiting until t = 8 hours costs you.

“If we have not made a great mistake, the issue should hardly remain doubtful, even if our information is far from being complete or precise.” — Carl von Clausewitz, On War, Bk. I, Ch. III, trans. Col. J. J. Graham (1873)

Step 1 — Set the regime

Three knobs define every decision under uncertainty: how fast new information arrives, how expensive it is to wait, and how much you already know going in.

Information rate k 0.50 / h

How fast the unknown half of the picture fills in.

Cost of waiting c 8.0 %/h

What every extra hour of analysis costs in lost option value.

Baseline awareness Q₀ 30 %

How much you already know at t = 0.

Step 2 — The decision-quality curve

Illustrative

Illustrative model — your slider values, not real data. The Clausewitzian claim is qualitative: cost of waiting eventually dominates the value of more data.

Step 3 — The four numbers that matter

Optimal commit 3.0 h peak of V(t)
Info at commit 84% Q(t*)
Net value at commit 60% V(t*) = Q − C
If you wait to t = 8 h 35% Penalty: −25 pp
Diagnosis

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Show the model

An exponential saturation for information completeness, a linear cost of waiting, and a closed-form optimum where marginal information equals marginal waiting cost. Pick the regime; read off the optimal commit. The point is not the formula — it is the shape: V(t) rises, peaks, and falls.

Reference

Carl von Clausewitz, On War, Bk. I, Ch. III “On Military Genius” (the “coup d'œil” passage), trans. Col. J. J. Graham (London, 1873). Project Gutenberg #1946.

Klein, G., Calderwood, R., & Clinton-Cirocco, A. (1986). Rapid decision making on the fire ground. Proc. Human Factors Society 30th Annual Meeting, 30(6), 576–580. SAGE.