Development of the Dual Concept of Perception in the Marine Environment – A Thought Experiment

The long evolution period of life in the sea, long before the successful conquest of land areas by vertebrates about 390 million years ago, laid the foundation for many biological and physiological similarities in land creatures. In mammals, remains of the paired structures of branchial arteries can still be found and prove the common origins. The principles of symmetry and of duality have been observed since the early days of evolution and affect all physical and functional structures. The question arises how in a world of complex processes and chaotic conditions a simple dual system such as dichotomy can prove useful for brain functions. In fact, a lot of detailed information gets lost when things are reduced to two contrasting properties. Obviously, the comparison of only two opposite patterns permits quick discrimination. This is particularly important when rapid recognition of crucial situations and prompt and fitting reaction are vital. Abstraction of sensory impressions accelerates processing by the brain and allows useful information to be prioritized. Externalization of self-awareness facilitates the conscious awareness of a self that is aware of its own existence.