In arguing that the philosophical works of Jean Piaget could be used as a `remedy’ for the flaws in those of Thomas Kuhn, Tsou overlooked some crucial aspects of the problem: the early history between them, the biological foundation supporting Piaget’s method, and a preexisting suggestion regarding the intended future extension of his work. There was also no mention of the existence of a `lost’ manuscript by Kuhn, which supposedly presents the mature articulation of his theory. This comment therefore proposes some `friendly amendments’ to Tsou’s exposition, with a view to helping achieve his synthetic vision once the `lost’ work has finally been published. Yet the basic message, in anticipation of this future endeavor, is also exceedingly simple: the implicit direction of Piaget’s (and Kuhn’s) epistemological constructivism can be characterized as evolutionary-developmental `progress from, ’ rather than vitalist-teleological `progress toward. '

This essay takes – as its point of departure – Cavicchi’s (2006) argument that knowledge develops through experimentation, both in science and in educational settings. In attempting to support and extend her conclusions, which are drawn in part from the replication of some early tasks in the history of developmental psychology, the late realist-constructivist theory of Jean Piaget is presented and summarized. This is then turned back on the subjects of Cavicchi’s larger enquiry (education and science) to offer a firmer foundation for future debate. Several of Piaget’s “forgotten works” are discussed; their theoretical contributions synthesized to form a single interdisciplinary, crosspollinating narrative describing how it is that both children and scientists grow into the world. (In addition, translated excerpts from two related historical documents have been provided in an appendix, while detailed footnotes add further context and integrate the discussion with current advances in related fields.)