To Fellow practitioners Rievviocloenialkeo analytics
September 26, 2026

Subject

An open letter to those applying entropy and mutual information in financial decisions

To technical and business professionals,,
Finance team writing letter

You operate in a world flooded by metrics. Every tool promises sharper insight, but most add complexity without clarity. Entropy and mutual information have joined this list—often misapplied, sometimes misunderstood. We urge you: don’t let technical jargon disguise poor analysis. Challenge assumptions. Test every metric, especially when it feels easy.

We’ve seen portfolios built on shaky entropy calculations, decisions justified with mutual information that ignores context. The harm isn’t just academic. It’s real capital, real consequences. The right move is to scrutinize your inputs, sanity-check your outputs, and never stop questioning what each measure really means.

If you apply information-theoretic concepts, remember their origins and limitations. Probability estimates can mislead. No single metric is a magic bullet. Integrate these tools with sound judgment, robust scenario planning, and diverse analytical perspectives. Results may vary. That’s not a disclaimer—it’s a call for rigor.


Onward together,

The Rievviocloenialkeo team

P.S. Results may vary; treat every metric as a hypothesis, not a verdict.