You’re assuming zero variation to which the phrase diminishing returns, referring to a model of a real world effect, definitely does not imply. At some point, variation exceeds the effect size of convergence in which case the important figure becomes whether the variation is net positive or net negative.
You’re assuming zero variation to which the phrase diminishing returns, referring to a model of a real world effect, definitely does not imply. At some point, variation exceeds the effect size of convergence in which case the important figure becomes whether the variation is net positive or net negative.