  The Copenhagen interpretation of quantum entanglement experiments is at best
incomplete, since the intermediate state induced by collapse of the wave
function apparently depends upon the inertial rest frame in which the
experiment is observed. While the Many Worlds Interpretation of Everett, MWI,
avoids the issue of wave function collapse, it, too, is a casualty of the
special theory of relativity. This requires all events in the universe, past,
present and future, to be unique, as in the block universe picture, which rules
out Everett style branching. The benefits of MWI may be retained, however, by
postulating a multiverse of discrete, parallel, block universes which are
identical to each other up to certain points in the MWI trunk before they
diverge according to the MWI branching. The quantum probability of an event
then emerges from the number of parallel universes in which the event happens
divided by the total number of universes. This means that the total number of
such universes is finite. Such a picture is more easily envisaged by thinking
of it as a purely mathematical structure, as in the Mathematical Universe
Hypothesis proposed by Tegmark. However, while Tegmark wished to avoid
contamination from Goedelian self referential knots, not only does such
contamination appear to be inevitable, it brings an unexpected benefit. The
mathematical hierarchy required by the enigmatic footnote 48a in the paper by
Goedel leads to an explanation for a unitary evolution of deterministic quantum
rules across the multiverse while accounting for quantum uncertainty within an
individual universe. Other aspects of this structure, called here the Plexus,
are discussed, including awareness of existence and other questions raised by
the hypothesis.
