The Heisenberg Uncertainty Principle in Mississippi The Heisenberg Uncertainty Principle states, simplistically put, that things are uncertain. "Things" is important here: in physics, things are only things when they or their properties have been observed, in particular, their measurements; else they are at best irrelevant. To be said to exist, to contribute to the physicist's view of reality, they must be observable, and unobserved observables are merely extrapolations from observed observables. Furthermore, observation of a thing, the only source of its claim to reality, interacts with the thing observed, changing its properties and thus at once falsifying the results of observation. (Entanglement has since replaced direct disturbance in accounting for uncertainty in observation.) In 1962, the Federal Government, in its methodical campaign to desegregate the South one institution at a time, enlisted a young black man, James Meredith, who had won in court t...