Ever hear of the "correspondence principle" ?
Why yes grey_whiskers: Niels Bohr insisted on it. For this reason, he said that all descriptions of quantum phenomena should be made in the "classical language" of Newtonian physics.
Moreoever one imagines the principle additionally implies that, if there is uncertainty in quantum phenomena, then correspondingly there is uncertainty in the "classical" domain as well. So much for "exact" science....