David Armstrong, writing on "the transformation of medical knowledge," notes that, as a young medical student, he never considered "that the human body which we dissected and examined was other than a stable experience"
later, he began to consder the question of "how the body had become so evident in the first place"
Duden notes her own similar experience: "a continuous astonishment at the self-evident manner in which we take the body for granted as an unchanging biological reality" (3)