These are excerpts and elaborations from my book "The Nature of Consciousness"
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Goal-driven Evolution In his teleo-evolutionary
theory, the Romanian philosopher Radu Bogdan summarized things this way:
organisms are systems that are genetically programmed to maintain and replicate
themselves, therefore they must guide themselves to their goals, therefore they
need to obtain relevant information about their environment, therefore they
need to be cognitive. It makes
evolutionary sense that cognition should appear. But what guides the
organism, and its cognition, is the environment. It could not be anything else.
Cognitive systems are guided by the environment in their goal-driven behavior.
Cognitive systems are actually the very product of the evolutionary pressure of
that guiding behavior. Central to his thinking is
the concept of "goal-directedness: natural selection presupposes
goal-directedness. Goal-directedness arises from the genes themselves, which
operate goal-directedly. Organisms
manage to survive and multiply in a hostile world by organizing themselves to
achieve specific, limited goals in an ecological niche. To pursue their goals,
organisms evolve ways to identify and track those goals. Such ways determine
which knowledge is necessary. To obtain such knowledge, organisms learn to
exploit pervasive and recurrent patterns of information in the world. The
information tasks necessary to manipulate such information "select"
the appropriate type of cognitive faculties that the organism must be capable
of. Imagine an organism that
cannot recognize recurring situations: in every single moment of its life, it
must improvise how to deal with the current situation. An organism that can
recognize recurring situations can develop ways to best react to those types of situations. These ways make up
its cognition. The organisms that survived are those whose cognition matched
the situations that recur in their ecological niche. The mind is not only
controlled by the environment: it was created (or at least selected) by the
environment. Back to the beginning of the chapter "Ecological Realism: The Embodied Mind" | Back to the index of all chapters |
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