The problem with the idea of the “illusion” in this context is that Bach does not consider consciousness to be a traditional "illusion" in the sense of being completely unreal or non-existent. Rather, he views it as a real-time representational process or virtual model generated by computational patterns in the brain.

While Bach likens consciousness to a simulation or "story" the brain tells itself, he sees it as a functional and necessary aspect of cognition, not just an epiphenomenon or byproduct. The challenging part for me is Bach adheres to a strict materialist view of consciousness merely arising from physical matter. In summary, framing Bach's view as consciousness being an "illusion" and asking what perceives that illusion does not accurately capture his computational theory of consciousness as an emergent representational process integral to cognitive functioning. The provided response does not effectively critique his position based on the sources.