How on earth can you dispose your consciousness towards the world in two conflicting ways at once? The answer is the evolution of two neuronal masses, separate enough to function independently, but connected enough to work in concert with one another, each capable of sustaining consciousness on its own. In other words, a bipartite brain. Thus the need to sustain two incompatible ‘takes’ on the world simultaneously explains, I believe (and there is no significant competing theory), the extraordinary fact that the brain is so deeply divided, an otherwise inexplicable waste of potential in an
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