0201 The book before me is Semiotic Agency: Science Beyond Mechanism, by biosemioticians Alexei Sharov and Morten Tonnnessen.  The book is published in 2021 by Springer and logs in at volume 25 of Springer’s Series in Biosemiotics.  The editors of this series have Razie Mah’s permission for use of following disquisition, with attribution of said blogger.

Part III concerns theoretical considerations, addressing the headliner question.

Here is a list of the chapters, along with their titles.

Each title labels a labor of biosemioticians.

0202 So far, from Part I, Sharov and Tonnessen propose a philosophical dyad that serves as an overlay for the noumenon of biosemiotics.  The authors’ proposed noumenon constitutes what is for the Positivist’s judgment and contains what all biosemiotic phenomena have in common.

This is significant.

0203 The Positivist’s judgment is constructed, starting in the 1600s, by mechanical philosophers.  Mechanical philosophers aim to bracket out metaphysics, in favor of models based on observations and measurements.

So, what is science?

0204 Comments on Jacques Maritain’s Book (1935) “Natural Philosophy” shows that the scholastic ideation of three styles of abstraction comes close to a satisfying answer.  But, no one can capitalize on that answer until a hidden knot is unraveled.  A knot?  Two judgments are entangled.  This becomes clear when the abstractions are pictured as elements of judgment.

0205 The following diagram of the Positivist’s judgment is a satisfying way to portray what the mechanical philosophers created in the 1600s and what Kant corrected in the late 1700s.

In 2025, no definition of science compares to this diagram.

0206 In the Positivist’s judgment, the positive intellect (relation, thirdness) brings the empirio-schematic judgment (what ought to be, secondness) into relation with the dyad, a noumenon [cannot be objectified as] its phenomena (what is, firstness).

In the empirio-schematic judgment, disciplinary language (relation, thirdness) brings mathematical and mechanical models (what ought to be, secondness) into relation with observations and measurements of phenomena (what is,firstness).

0207 Immanuel Kant (1724-1804) forces natural scientists to concede that they investigate the observable and measurable facets of the thing itself.   Plus, their observations and measurements cannot fully objectify the subject of inquiry.

0208 Over the next two centuries (1800s and 1900s),  scientists promote their successful models, saying, “Our models are more illuminating than the thing itself.  Indeed, our models can take the place of the noumenon.  Once that happens, then our models can be objectified by their phenomena.  Observations and measurements validate the successful model.”

The academic laboratory sciences are born.  For example, a chemistry laboratory and its accompanying lecture belong to the laboratory science of chemistry.  In contrast, the science of chemistry is the study of natural processes, that is, things themselves.  The key to science is to make an observation and then explain it.  The model is an explanation, rather than the thing itself.