  When investigating theories at the tiniest conceivable scales in nature,
almost all researchers today revert to the quantum language, accepting the
verdict from the Copenhagen doctrine that the only way to describe what is
going on will always involve states in Hilbert space, controlled by operator
equations. Returning to classical, that is, non quantum mechanical,
descriptions will be forever impossible, unless one accepts some extremely
contrived theoretical constructions that may or may not reproduce the quantum
mechanical phenomena observed in experiments.
  Dissatisfied, this author investigated how one can look at things
differently. This book is an overview of older material, but also contains many
new observations and calculations. Quantum mechanics is looked upon as a tool,
not as a theory. Examples are displayed of models that are classical in
essence, but can be analysed by the use of quantum techniques, and we argue
that even the Standard Model, together with gravitational interactions, might
be viewed as a quantum mechanical approach to analyse a system that could be
classical at its core. We explain how such thoughts can conceivably be
reconciled with Bell's theorem, and how the usual objections voiced against the
notion of `superdeterminism' can be overcome, at least in principle. Our
proposal would eradicate the collapse problem and the measurement problem. Even
the existence of an "arrow of time" can perhaps be explained in a more elegant
way than usual.
  Discussions added in v3: the role of the gravitational force, a mathematical
physics definition of free will, and an unconventional view on the arrow of
time, amongst others.
