 These issues relate to the so-called Quantum mind-body problem.In the film, during a discussion of the influence of experience on perception, Candace Pert notes a story, which she says she believes is true, of Native Americans being unable to see Columbus's ships because they were outside their experience.According to an article in "Fortean Times" by David Hambling, the origins of this story likely involved the voyages of Captain James Cook, not Columbus, and an account related by Robert Hughes which said Cook's ships were "...complex and unfamiliar as to defy the natives' understanding".