Schrödinger’s Consulting Room

Schrödinger's Cat is a famous thought experiment that demonstrates the idea in quantum physics that tiny particles can be in two states at once until they're observed.

In the thought experiment, if you seal a cat in a box with something that can eventually kill it, you won't know if the cat is alive or dead until you open the box. So, until you open the box and observe the cat, the cat is simultaneously dead and alive.

Here we have a hospital consulting room showing it to be both FREE and ENGAGED at the same time.
Until I open the door, the room is both free and engaged simultaneously.