“Anything said is said by an observer.” This is a quote from Humberto Maturana, a Chilean biologist
The Certainty of Uncertainty Dialogues Introducing Constructivism. This is a book that introduces and articulates what is called constructivism. Constructivism like many words, can mean a variety of descriptions.
This is a book of interviews of prominent voices that talk about the discovery of the observer, an observer that since Descartes hasn’t always been involved in a so-called “objective” science.
the which deals with the origin and creation of conceptions of real- ity, deny the existence of an external world; they all deny, however, that it is possible to know that external world in a subject-independent way. Every act of cognition, it is claimed, necessarily rests on the constructions of observers – and not on the point-to-point correspondence of perception and external reality. “Anything said is said by an observer.”
This attitude represents a middle course between various forms of realism and the exaggerations of solipsism. There is no denial of an external world. It the denial that humans can possibly know the world in a subject-independent way.