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Card 126 of 9902026-09-17 issue

Observed arrival · 2026-09-17

CauseAndCorrelation Turns Hunches Into Daily Studies

causeandcorrelation.com Visit website
Editorial interest 78/100 Selection signal · not a rating of the site

A habit-and-outcome tracker that looks for statistical correlations across daily logs, including delayed effects.

Landing page captured for the 2026-09-17 issue.

Field notes

The service frames personal habit tracking as a small observational study: users define a possible cause and an outcome, then record each with a daily yes/no or 1–10 response. Its stated analysis looks beyond same-day movement by testing delayed effects, applies a minimum-data threshold, and corrects significance testing for multiple comparisons. The homepage also describes PDF export and an optional connection to Claude or another MCP-compatible assistant, though those capabilities are presented as site claims rather than demonstrated outputs.

Observed signals

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Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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Landing page observed 2026-09-17. The live site may have changed.