A persistent claim in popular psychedelic discourse holds that congenitally blind and congenitally deaf individuals can see and hear under N,N-dimethyltryptamine (DMT). The empirical record contradicts it. The only systematic study of psychedelics in totally blind subjects, the only published case report of a congenitally blind user, and the most comprehensive review of blindness and altered states converge on the same finding: congenitally blind individuals do not report visual hallucinations u

