@Dortadriano @MichaelAArouet I never once argued that fact, nor did I argue wheels and leverage do not increase productivity. That would be silly. Wha

@Dortadriano @MichaelAArouet I never once argued that fact, nor did I argue wheels and leverage do not increase productivity. That would be silly.

What I said was carrying five boxes may not be more productive than someone else carrying five boxes.