There are disadvantages for a cold-blooded animal with a ‘physical mind’. If behaviour is governed entirely by the quality of sunlight and the availability of body warmth, then damage to the exposed sense-organ could lead to behavioural incapacitation. Emerging warm-blooded animals are free to move about at night and attack the sluggish ectotherms and their eggs. In the analysis of fossil material, possession of an E-2 entire complex indicates an ectothermic physiology, while absence of the median eye E-1 may suggest either endothermy or ectothermy. A transitional evolutionary phase is possible if the pineal body is retained, whereas an E-0 fossil indicates that such vertebrates utilised some other means of temperature control. Conservation of body warmth, and allocation of energy to different parts of the body, is of central importance, and an inverse relationship has been shown to exist between dependence on environmental sources of heat and the complexity of the epiphyseal complex. An evolutionary reduction of the E-2 complex occurred in most vertebrates under the gradual warming and less seasonal climates the early Mesozoic. Loss of the median eye in mammal-like reptiles as they crossed the reptilian-mammalian boundary. Incidentally, small size is important in the emergence of competent endothermy, since metabolic rate increases as size decreases irrespective of thermoregulatory strategy, and small size in warm-blooded reptiles may have been an important adaptation in warming climates, since a greater surface-to-volume ratio facilitates heat loss.
PHYSICAL MIND TO "CONSCIOUSNESS ENGRAM" OR TRACE :
Complexity caused by ONGOING ABSTRACTION to this day
I propose that the pattern of evolution of mental representations has been away from direct ‘physical and chemical responses’ (such as exhibited by a simple organism like the amoeba whose behaviour can be predicted by chemical attraction towards food and aversion to harmful light radiation and toxins) and towards increasing levels of self-volition and control of behaviour. Increased powers of abstraction, as shown by the human abilities to manipulate symbols (language, math's etc.) have evolved as the median eye (physical spotlight of ‘consciousness) becomes more historically remote and its areas of control are eroded. For example, the invention of electric light has allowed greater ‘mental’ or ‘self’ control (choice) over circadian rhythms. I claim that levels of ‘consciousness and self-volition have occurred in direct inverse proportion to the atrophy of the median eye. Abstract, or non-physical structures (holes, gaps, minds or conceptual ‘structures’) have ‘replaced/emerged from’ the earlier physical structure.