Some time ago, I heard about a simple analogy for the AdS/CFT correspondence to something in everyday life. Consider a room filled with furniture, with the walls of the room covered in mirrors. The 2D mirrors we can think of as an N-dimensional CFT--the furniture is the corresponding entities in the N+1-dimensional AdS.

I feel like this is an over-simplification. What is lost in the actual AdS/CFT correspondence in this analogy? I feel like information in the 3D world is lost in the 2D mirror--is this true in the AdS/CFT correspondence? That is, is there information in the AdS that can't be expressed in the CFT?

This post imported from StackExchange Physics at 2015-06-05 09:23 (UTC), posted by SE-user Joshuah Heath