It is believed by constructivists that representations of physical and biological reality, including race, sexuality, and gender, as well as tables, chairs and atoms are socially constructed. Marx was among the first to suggest such an ambitious expansion of the power of ideas to inform the material realities of people's lives
idea that views are relative to differences in perception and consideration
A common preconception is that generally, understanding should precede acting and that theory is superior to practice (which depends on and is justified by theory), with post-rationalisation usually regarded as a shortcoming. In the context of radical constructivism, this preconception seems shortsighted: If acting generates understanding, and understanding, in turn, generates acting, the relationship of acting and doing can be described more appropriately as cyclical.
— Christiane M. Herr - Design Cybernetics: Constructing Cybernetic Thinking, Design, and Education