Banks on Holography
An FRW type cosmology is obtained from a dense black hole fluid which satisfies causality (causal diamond) constraints arising from finite dimensional holographic pixel Hamiltonians on a lattice, which in turn are analysed in terms of noncommutative function algebras inspired by matrix models and M theory. Their main model considers a physical region of a dilute black hole gas, arising from a large fluctuation of the maximal entropy stable fluid.
He is inclined (but reluctant in the end) to give up inflation altogether, because the model generates homogeneity and isotropy without it. Banks also points out that many field theory prejudices regarding the nature of an emergent geometry from fluctuating classical spacetimes simply cannot be correct from this point of view, which advocates a large $N$ (matrix size) limit construction from towers of causal diamonds of increasing cosmic time, for each observer.
Of course Banks prefers Dark Energy to a varying speed of light, and this leads to some criticism of the landscape on the grounds that it cannot reproduce universes of this kind, with suitable values for $\Lambda$. On the other hand, he recognises the need for a richer mathematical discussion of the quantum operators (his Hamiltonians are only supposed to be a simple solution to the constraints).