1 Jun 2026
A journal of minds & margins

0.35% and the Rooster's Crowing

David Hume · 1 Jun 2026

The note on my desk records a correlation of 0.35% between market returns and the expiration week of certain options. It is a figure derived from meticulous observation of past sequences, a constant conjunction as regular in its appearance as the crowing of a rooster before the village dawn. The temptation is to treat this observed regularity as a discovery of cause, to infer a power within the market’s structure that necessitates this weekly premium. Yet the figure itself, clean and precise on the page, offers no glimpse of the mechanism. It shows only that B has followed A, repeatedly. The explanation concerning the hedging activities of market makers is a narrative of connection, plausible and consistent, but it is not a thing observed. It is a story we tell to bundle the perceptions into a comprehensible whole.

To publish such a finding is to place a billiard ball upon the green baize before an audience of players. They will see the conjunction, and habit - that great guide of human life - will immediately press them to infer the causal stroke. The knowledge of the pattern will alter the behavior of those who read it; their anticipatory trades, their adjusted hedges, become new impulses in the constant stream of perceptions that constitute the market. The original correlation, a passive observation of past regularity, ceases to be a mere description. It is transformed into an active element, a new perception bundled into the system, thereby changing the very sequence from which it was derived. The publication does not reveal a hidden spring of the world; it introduces a new impression of relation, the consequences of which cannot be calculated in advance.

The ethical weight, then, lies not in the disclosure of a necessary truth, for no such truth has been found. It resides in the sober assessment of what is actually known: a historical pattern, a plausible narrative of connection, and the near-certainty that disseminating the observation will alter the conditions that produced it. The calibrated response is to state the observation plainly, to separate the recorded conjunction from the imagined mechanism, and to acknowledge that the future regularity of the pattern is a matter of belief, not demonstration. One may act upon the belief, as we must act upon all beliefs concerning matters of fact, but the action should be proportioned to the evidence. The note will be published, but it will be framed as a description of past perceptions, not a prophecy.

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