A Theoretical
System is the conceptual structure that a scientific community uses
as the bases for developing testable theories and interpreting data it is also
referred to as a paradigm. A scientific community’s theoretical system is accepted as
true by that community and it is generally fixed and not subject to change with
new data. This is true only of core concepts to which theoretical patches are
often added to make a theoretical system fit reality when reality is not what
was originally expected. The theoretical system forms the bases for developing
testable theories and interpreting data.
Example
Origins sciences has two main theoretical systems. Biblical creation
which has a 6 days creation, a global flood and a young Earth and General
evolution has the Big Bang cosmology, Nebula theory of star and planet
formation, Uniformitarian Geology, Abiogenesis and Biological evolution. All
other theoretical systems are basically mixtures of these two including old
earth creation and theistic evolution.
The key to understanding
theoretical systems
is that they can only be evaluated internally because they are self contained
systems. Different theoretical systems often produce different and even contradictory
interpretations for the same evidence so that an interpretation from one theoretical
system can not be used to disprove another because an interpretation from one theoretical
system may not be valid in another.
Parts of a theoretical system can start out as testable
theories and become so entrenched that they loose all testability by being patched
to the point where they can absorb any new data. The Big Bang is a good example
of this. It has be come so entrenched that there is no mainstream thought of
abandoning it because contradicting data is absorbed when possible such as the
accelerating expansion of the universe; which was
by the invention of dark energy; or ignored
such as the relationships between active galaxies and quasars.
Theoretical systems
can have concepts in common but while different system may share some concepts
while concepts are totally different. They are an unavoidable but little
understood part of Science because data is not self interpreting and needs a
theory on which to base the interpretation. Unfortunately it is often unclear
as to where a testable theory end and theoretical system begins.