Refuting Descartes and Enlightenment myths. Lakoff justifies how neuroscience findings of the processing of the unconscious mind leads him to the statement that 98% of our thoughts are unconscious.
What emerges into conscious knowing then is a small percentage of what the rest of the processing brain "knows".
The conscious mind therefore has no direct access to that 98% of what is going on to surface the 2% it is aware of. If we extend knowledge into processes that are beyond simply neural processes, however, this knowledge gap becomes even more pronounced.
Since human physiology of modern hominins is the evolutionary terminus point of billions of years of evolution, with at least 3 different prior Major Evolutionary Transitions (MET) embedded within our various body structures, our "conscious mind" is the governor over a thriving, cohesive planetary population of billions of cells and trillions of microbes of whose ongoing metabolic processes we are completely ignorant of.
Witness the development of disease within our bodies. The con-specific is unaware of it often until late stage symptoms appear and warrants a doctor's visit..