Every mutual-information term in equation 5 is nonnegative, but the paper shows none to be strictly positive.
Source quote, verbatim
Each term is non-negative and none is shown to be strictly positive.
From
Wulf A. Kaal, Reinforcement Learning from Reputation Feedback (2026), III.D.3 Information-Theoretic Decomposition of the Signal, p. 16 https://ssrn.com/abstract=7456999 · source PDF
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Wulf A. Kaal, Reinforcement Learning from Reputation Feedback (2026). SSRN: https://ssrn.com/abstract=7456999
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