Before revision:  However, the inability of humans to understand how their own subjective awareness arises (related to the so-called ' hard problem' of consciousness) is because the attention schema is inherently incomplete. In this short note, we ask to what extent it is possible, in principle, for a mind (either human or machine-based) to have an attentionschema that is complete in the sense of being able to faithfully represent streams of attention . Using a simple  model and a mathematical argument based on classical topology, we describe some limits of the extent to which an attention schema could be complete .
After revision:  However, the inability of humans to understand how their own subjective awareness arises (related to the so-called ' hard problem' of consciousness) . Given this theory, the present paper asks whether a mind (either human or machine-based) to have an attentionschema that is complete in the sense of being able to faithfully represent streams of attention . Using a simple model and a mathematical argument based on classical topology, we describe some limits of the extent to which an attention schema could be complete .