Two Sub-Systems of Consciousness?
These researchers are taking a somewhat provocative stance in trying to simplify consciousness into two components that could be simulated by machines.
To Dehaene and colleagues, consciousness is a multilayered construct with two “dimensions:” C1, the information readily in mind, and C2, the ability to obtain and monitor information about oneself. Both are essential to consciousness, but one can exist without the other.
It reminds me of the way meditation teachers like Culadasa describe consciousness as consisting of attention and awareness.