The evolutionary transition from unicellular life forms to multicellular (communal) life forms represented an intellectually and technically profound high point in the creation of the biosphere.
In the world of unicellular protozoa, each cell is an innately intelligent, independent being, adjusting its biology to its own perception of the environment.
However, when cells join together to form multicellular "communities," it required that the cells establish a complex social intercourse.
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Through sheer will power and intent, consciousness can attempt to over-ride a subconscious tape. Usually such efforts are met with varying degrees of resistance, since the cells are obligated to adhere to the subconscious program. In some cases the tensions between conscious will power and subconscious programs can result in serious neurological disorders.
For example, consider the fate of Australian concert pianist David Helfgott whose story was presented in the film Shine. David was programmed by his father, a survivor of the holocaust, to not succeed, for success would make him vulnerable in that he would stand out from others.