  We introduce consideration of a new factor, synchronisation of spacetime
Mixmaster oscillations, that may play a simplifying role in understanding the
nature of the general inhomogeneous cosmological solution to Einstein's
equations. We conjecture that, on approach to a singularity, the interaction of
spacetime Mixmaster oscillations in different regions of an inhomogeneous
universe can produce a synchronisation of these oscillations through a coupling
to their mean field in the way first demonstrated by the Kuramoto coupled
oscillator model.
