Stated simply, the idea is as follows: a quantum gravity theory in the interior of an anti-de Sitter spacetime is completely equivalent to an ordinary quantum particle theory living on the boundary.

• 简单来讲，全像理论的想法是：位于反德西特时空内部的量子重力论，会完全等价于一个位在边界上的一般量子粒子理论。