One way to think about is what goes on in a video game - you see characters on screen, but in the computer you actually have some data-structures describing the

One way to think about is what goes on in a video game - you see characters on screen, but in the computer you actually have some data-structures describing them. So a Player data-structure maps to a Player on screen, in the same way that some configuration of qubits on the surface of the universe corresponds to some thing from the "bulk" that we see.