Philosophical implications
Since its inception, the many counter-intuitive conditions and results of quantum mechanics have enraged strong philosophical contest and many interpretations. The arguments centered on the probabilistic nature of quantum mechanics, the difficulties with wave function crumple and the related measurement problem, and quantum nonlocality. Perhaps the only concurrency that exists about these issues is that there is no concurrency. Richard Feynman once said, "I think I can safely say that nobody understands quantum mechanics." According to Steven Weinberg, "There is now in my opinion no entirely satisfactory interpretation of quantum mechanics." The opinions of Niels Bohr, Werner Heisenberg and other physicists are often grouped together as the "Copenhagen interpretation". According to these opinions, the probabilistic nature of quantum mechanics is not a temporary feature which will ultimately be replaced by a deterministic theory, but is instead a f...