Remark: The threshold is assumed through a declared mechanism

The number $e_0$ is a parameter of the comparison model. Theorem thm:comparisontradeoff does not estimate a threshold for the trained 067A architecture. The term $kf(e-e_0)-\lambda f^2$ explicitly encodes an initial interference reduction followed by excessive-loss damage. The theorem proves the consequences of that mechanism rather than deriving it from magnitude ranking.