In the ongoing conversation about who should be permitted to do what within healthcare, a physician offers a quieter but more consequential question: not what doctors do, but how they think. The argument is not one of professional protectionism but of epistemological honesty — that medical training builds a diagnostic mind capable of recognizing danger disguised as the ordinary, a capacity forged across years of integrated learning that no protocol, however well-designed, can fully replicate. To expand professional scope without reckoning with this invisible foundation is not progress; it is a