Complex Specified Information
CSI- Complex Specified Information.
Information- see Shannon, Claude
(When Shannon developed his information theory he was not concerned about "specific effects":
The word information in this theory is used in a special mathematical sense that must not be confused with its ordinary usage. In particular, information must not be confused with meaning.- Warren Weaver, one of Shannon's collaborators
And that is what separates mere complexity (Shannon) from specified complexity.)
Specified Information is Shannon Information with meaning/ function
Complex Specified Information is 500 bits or more of specified information
MathGrrl wants a mathematically rigorous definition of CSI and I say that is like asking for a mathematically rigorous definition of a computer program (which contains CSI).
The mathematical rigor went into calculating the probabilities that got us to 500 bits of SI = CSI
Biological specification always refers to function. An organism is a functional system comprising many functional subsystems. In virtue of their function, these systems embody patterns that are objectively given and can be identified independently of the systems that embody them. Hence these systems are specified in the same sense required by the complexity-specification criterion (see sections 1.3 and 2.5). The specification of organisms can be crashed out in any number of ways. Arno Wouters cashes it out globally in terms of the viability of whole organisms. Michael Behe cashes it out in terms of minimal function of biochemical systems.- Wm. Dembski page 148 of NFL
In the preceding and proceeding paragraphs William Dembski makes it clear that biological specification is CSI- complex specified information.
In the paper "The origin of biological information and the higher taxonomic categories", Stephen C. Meyer wrote:
Dembski (2002) has used the term “complex specified information” (CSI) as a synonym for “specified complexity” to help distinguish functional biological information from mere Shannon information--that is, specified complexity from mere complexity. This review will use this term as well.
Biological functionality is specified information.
So what do we have to do to see if it contains CSI? Count the bits and figure out the variation tolerance because if any sequence can produce the same result then specified information disappears.
And again, CSI is all about origins…