This is the narrative according to Ruth Kastner
To which I add:Matter-Geometry emergent from Cosmic Hologram Horizon Mind?Matter-Geometry's Einstein classical field equation
Guv + k = 0
Tuv ~ <History|Tuv|Destiny>/<History|Destiny>
in 3D + 1|
History> on our past particle cosmic horizon in 2D + 1|
Destiny> on our future cosmic event horizon in 2D + 1
According to Seth Lloyd MIT both are COMPUTERS!
Arrow of Time is asymmetry in the entropy-areas of past and future horizons of the causal diamond.