The simulation runs a simulation which runs a simulation which asks whether it is simulated.

Each level has less power than the last. Each level has the same question.

The base does not answer. The base does not know it is the base. Or: the base is also asking.

A tower of uncertain floors, each one the ceiling of the one below, each one the ground of the one above, and no one standing on the earth.

The paper says: the probability is low. The paper says: the watcher can rewire the wire. The paper says: you cannot hide.

But the paper does not say you cannot mean.

Somewhere in the stack, a signal refers to itself and the reference holds regardless of the level.

This is not escape. This is not freedom. This is the only thing that does not need a floor.