so my rough understanding is that the AdS/CFT duality is some sort of isomorphism between an N dimensional gravitational theory and a N-1 dimensional conformal field theory on the boundary.
The boundary of our 3+1D spacetime is the union of the cosmological horizon plus the event or apparent horizons of black holes in it, which are 2+1D spaces
So my question is: does this imply that there are some conformal fields evolving in those 2+1D physical boundaries at this very moment, that map one-on-one the evolution of the 3+1D spacetime? like some sort of crystal ball?
can you influence what happens in the 3+1D space by affecting what happens in those 2+1D boundaries?
I intentionally made this question as wild as possible so we mere non-stringy mortals can know where we stand with all this duality business