  We understand emergent quantum mechanics in the sense that quantum mechanics
describes processes of physical emergence relating an assumed sub-quantum
physics to macroscopic boundary conditions. The latter can be shown to entail
top-down causation, in addition to usual bottom-up scenarios. With this example
it is demonstrated that definitions of "realism" in the literature are simply
too restrictive. A prevailing manner to define realism in quantum mechanics is
in terms of pre-determination independent of the measurement. With our
counter-example, which actually is ubiquitous in emergent, or self-organizing,
systems, we argue for realism without pre-determination. We refer to earlier
results of our group showing how the guiding equation of the de Broglie-Bohm
interpretation can be derived from a theory with classical ingredients only.
Essentially, this corresponds to a "quantum mechanics without wave functions"
in ordinary 3-space, albeit with nonlocal correlations.
  This, then, leads to the central question of how to deal with the nonlocality
problem in a relativistic setting. We here show that a basic argument
discussing the allegedly paradox time ordering of events in EPR-type
two-particle experiments falls short of taking into account the contextuality
of the experimental setup. Consequently, we then discuss under which
circumstances (i.e. physical premises) superluminal information transfer (but
not signaling) may be compatible with a Lorentz-invariant theory. Finally, we
argue that the impossibility of superluminal signaling - despite the presence
of superluminal information transfer - is not the result of some sort of
conspiracy (a la "Nature likes to hide"), but the consequence of the
impossibility to exactly reproduce in repeated experimental runs a state's
preparation, or of the no-cloning theorem, respectively.
