It is because computation is an interpretation imposed on a physical system from the outside, but that is distinct from my experience of consciousness; your interpretation of my consciousness is irrelevant.
If I impose a computational interpretation onto inert material after the fact, did that material possess the consciousness? Suppose I overlay a projection of the calculation of an AGI onto a circuit board, is that projection equally conscious to if that circuit board did the computation in the usual way?
Said differently, suppose we take a large computer and simulate a sequence of random byte strings. At each tick we contrive a substring and form a new sequence out of these substrings such that the combined sequence of substrings simulates an AGI. Was consciousness present in the original sequence. Is it even necessary to do any computation at all to create the consciousness then since any intelligent sequence can be interpreted out of anything?
No, that is absurd. The reasonable view is that computation is irrelevant and what is relevant is some special physical process.
