 In general, Whitehead opposed the modern scientist’s attitude of dropping the requirement of coherence with our basic intuitions, and he revolted against the issuing bifurcation of nature into the world of science and that of intuition. In particular, as Einstein’s critic, he set out to give an alternative rendering of the GTR—an alternative that passed not only what Whitehead called “the narrow gauge”, which tests a theory’s empirical adequacy, but also what he called “the broad gauge”, which tests its coherence with our basic intuitions.