While I like the model OP has because it's pleasing to the logic, it's just too simple.
If we want to look at it scientifically, we first need to look at it from the neuroscience POV. Neurons fire in specific areas of the brain in order to integrate sensory information and send out a response. Parts of the brain are associated with certain conscious and unconcious actions. These parts 'talk' to each when performing complex tasks.
This all seems to make a nice, logical flow, but it only scratches the surface. Rate of neuron fire, neuron fire synchronicity, brain plasticity (the creation of new neurons)... all with mostly unclear relationships to conciousness as a whole.
Is conciousness a by-product of the immense neural networking of the brain? If not, what is the "smallest functional unit" of conscious the one requires?
Theres a ton of cool stuff in the Karl Friston talk for Lex Fridman's AI podcast, he's a neuroscientist who explains a lot about we do and don't know about the brain.
https://youtu.be/NwzuibY5kUs 
