  Determinism is established in quantum mechanics by tracing the probabilities
in the Born rules back to the absolute (overall) phase constants of the wave
functions and recognizing these phase constants as pseudorandom numbers. The
reduction process (collapse) is independent of measurement. It occurs when two
wavepackets overlap in ordinary space and satisfy a certain criterion, which
depends on the phase constants of both wavepackets. Reduction means contraction
of the wavepackets to the place of overlap. The measurement apparatus fans out
the incoming wavepacket into spatially separated eigenpackets of the chosen
observable. When one of these eigenpackets together with a wavepacket located
in the apparatus satisfy the criterion, the reduction associates the place of
contraction with an eigenvalue of the observable. The theory is nonlocal and
contextual.
