Constructivism

Constructivism proposes new definitions for knowledge and truth that forms a new paradigm, based on inter-subjectivity instead of the classical objectivity and viability instead of truth. The constructivist point of view is pragmatic as Vico said: "the truth is to have made it".

In this paradigm, "sciences of the artificial" (see Herbert Simon) as cybernetics, automatics or decision theory, management and engineering sciences can justify their teaching and have a space in the academy as "real sciences".

One version of social constructivism contends that categories of knowledge and reality are actively created by social relationships and interactions. These interactions also alter the way in which scientific episteme is organized.

Social activity presupposes human beings inhabiting shared forms of life, and in the case of social construction, utilizing semiotic resources (meaning making and meaning signifying) with reference to social structures and institutions. Several traditions use the term Social Constructivism: psychology (after Lev Vygotsky), sociology (after Durkheim, Peter Berger and Thomas Luckmann, themselves influenced by Alfred Schütz), sociology of knowledge (David Bloor), sociology of mathematics (Sal Restivo), philosophy of mathematics (Paul Ernest). Ludwig Wittgenstein's later philosophy can be seen as a foundation for Social Constructivism, with its key theoretical concepts of language games embedded in forms of life.

* Verum esse ipsum factum, Giambattista Vico

"the norm of the truth is to have made it," or
"the true is precisely what is made"

* Verum et factum convertuntur, Giambattista Vico

"the true and the made are convertible"

* Et, quoi qu’on en dise, dans la vie scientifique, les problèmes ne se posent pas d’eux-mêmes. C’est précisément ce sens du problème qui donne la marque du véritable esprit scientifique. Pour un esprit scientifique, toute connaissance est une réponse à une question. S’il n’y a pas eu de question, il ne peut y avoir de connaissance scientifique. Rien ne va de soi. Rien n’est donné. Tout est construit, Gaston Bachelard (La formation de l'esprit scientifique, 1934)

"And, irrespective of what one might assume, in the life of a science, problems do not arise by themselves. It is precisely this that marks out a problem as being of the true scientific spirit: all knowledge is in response to a question. If there were no question, there would be no scientific knowledge. Nothing proceeds from itself. Nothing is given. All is constructed."

* On a toujours cherché des explications quand c’était des représentations qu’on pouvait seulement essayer d’inventer, Paul Valéry

"We have always sought explanations when it was only representations that we could seek to invent"

* Ma main se sent touchée aussi bien qu’elle touche ; réel veut dire cela, et rien de plus, Paul Valéry

"My hand feels touched as well as it touches; that's reality, and nothing more"

* Intelligence organizes the world by organizing itself, Jean Piaget in "La construction du réel chez l'enfant" (1937)