Random Variations to Natural Information Stores
Random Variations to Natural Information Stores Variations to natural information stores occur randomly. Random genetic variation mechanisms are well known. Mutation and sexual recombination result in random variations and without these mechanisms, no natural alterations to a genetic code would occur. Barring deliberate human action, there is no other mechanism available. Similarly, and as indicated earlier, barring knowledge held in long-term memory indicating which moves to make when faced with a problem, moves can only be generated randomly as indicated on the left side of the elements combinations continuum of the matrix of continua. Until the knowledge base can be brought into play allowing movement to the right side of the elements combinations continuum, move generation is necessarily random, just as mutation and genetic recombination are random. Material deliberately intended to have an educative function provides the only exception to these mechanisms. Education techniques can reduce or eliminate the random generation of problem-solving moves (see later), just as the deliberate alteration of a genetic code substitutes for the random variations due to mutation and genetic recombination. Both the historical reasons for and the consequences of the concept of random variations to natural information stores need to be carefully noted. Random variation was required to explain the evolution of species through natural selection without a guiding intelligence and provides one of the major functions of the theory of evolution. In other words, evolution by natural selection does not have a ‘‘central executive’’ to guide the process. Indeed, in the many theologically motivated debates concerning the theory of evolution, there appears to have been a tacit consensus that no 238 John Swellernatural, as opposed to supernatural, candidate for an intelligence guiding the evolution of species was available. All of the ‘‘intelligence’’ of the system resides in genes. A requirement for a second intelligence to guide the manner in which genes evolve would require a third to guide the second and so on, resulting in an infinite regress. Random mutation and natural selection act as substitutes for an additional intelligence. One purpose of this chapter is to suggest that human cognitive architecture similarly has no natural intelligence in the form of a central executive guiding the generation of novel procedures. There is a natural intelligence in the form of schemas held in long-term memory that guide previously learned procedures that have been established as eVective. Those schemas govern the vast bulk of human behavior, including determining what new material should and should not be learned. As indicated previously and as is the case for evolution by natural selection, that stored information incorporates intelligence. An additional intelligence (or central executive) would require an infinite regress to function. When schematic knowledge held in long-term memory is not available or when guidance from other humans who hold such knowledge is not available, only random selection of mental actions is possible. Of course, knowledge gained from those randomly selected mental actions can be retained in long-term memory, which ensures that subsequent actions are intelligent rather than random. Analogously, genetic codes provide a natural intelli- gence to guide the continuation of a successful species. When suitable codes are not available, random mutations determine which codes will be oVered to the environment for testing as part of the processes of natural selection
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