  This paper presents the thermal interpretation of quantum physics. The
insight from Part I of this series that Born's rule has its limitations --
hence cannot be the foundation of quantum physics -- opens the way for an
alternative interpretation -- the thermal interpretation of quantum physics. It
gives new foundations that connect quantum physics (including quantum
mechanics, statistical mechanics, quantum field theory and their applications)
to experiment. The thermal interpretation resolves the problems of the
foundations of quantum physics revealed in the critique from Part I of this
series. It improves the traditional foundations in several respects:
  * The thermal interpretation reflects the actual practice of quantum physics,
especially regarding its macroscopic implications.
  * The thermal interpretation gives a fair account of the interpretational
differences between quantum mechanics and quantum field theory.
  * The thermal interpretation gives a natural, realistic meaning to the
standard formalism of quantum mechanics and quantum field theory in a single
world, without introducing additional hidden variables.
  * The thermal interpretation is independent of the measurement problem. The
latter becomes a precise problem in statistical mechanics rather than a fuzzy
and problematic notion in the foundations. Details will be discussed in Part
III.
