Outside we could observe how information is flowing, what connects to what, how parts work, how they work together. But never observe the actual feeling of you.
It's like seeing a river flowing, you can measure and describe all kinds of aspects of it. But to get wet, to feel the cold water, to feel the force by which is flows, you have to step into it. Only this river flows in virtual reality, your minds reality, and you cannot step into it.
Intelligence is hard to measure, but I can objectively say what is and what isn't intelligent. It is not the same kind of subjectivity.
And in general, your table idea, that only works for systems that can be in a limited amount of states. You cannot do it for an intelligence test, especially not if I get to redesign the test after you finished your table, same for consciousness.