Additionally, in such a hugely complex, inefficient system considerable fragmentation of function would occur. Without central coordination multiple partial centres of control would develop - rather like a large country with a widely distributed human population that breaks up into uncoordinated even warring sub groups. But it is also likely to produce individuals who intermittently were cognitively dysfunctional and perhaps dangerous to themselves and to those around them. It may also be the case that this operational dysfunction is responsible for our loss of simple animal coherence both physical and mental. The problem is created by extreme evolutionary success.
Nature is willing to pay almost any price when the outcome is so advantageous.
A.I. scientists are still unsure, even in principle, of the software rules for a human equivalent thinking machine, no matter what the computational power. It may be that nature's requirement for simple genetic specification and graded intermediate stages of development severely limits the kind of models we can propose for human brain development. This account of massive but low efficiency neurocognitive development when combined with the multi-level universal brain model has many explanatory ramifications. In other animals, the neural hierarchy provides simple learning processes in the lower structures and speed, complexity of response and tight integration of function in the upper - much of it hard wired . In the human animal, the lower levels provide very large capacity simple learning plus routine abstracting and conceptual functions.