It’s actually discussed in the paper. > Explanatory power compared to other hypotheses > The emergence of meat-eating, tuber-harvesting, and cooking have all

It’s actually discussed in the paper. > Explanatory power compared to other hypotheses > The emergence of meat-eating, tuber-harvesting, and cooking have all been proposed to account for human brain expansion; why should our just-so story be given any additional credence? Below, we consider several explanatory advantages of the External Fermentation Hypothesis versus other current hypotheses. https://www.nature.com/articles/s42003-023-05517-3 https://www.nature.com/articles/s42003-023-05517-3