  We start from classical general relativity coupled to matter fields. Each
configuration variable and its conjugate momentum, as also space-time points,
are raised to the status of matrices [equivalently operators]. These matrices
obey a deterministic Lagrangian dynamics at the Planck scale. By
coarse-graining this matrix dynamics over time intervals much larger than
Planck time, one derives quantum theory as a low energy emergent approximation.
If a sufficiently large number of degrees of freedom get entangled, spontaneous
localisation takes place, leading to the emergence of classical space-time
geometry and a classical universe. In our theory, dark energy is shown to be a
large-scale quantum gravitational phenomenon. Quantum indeterminism is not
fundamental, but results from our not probing physics at the Planck scale.
