Lerner (2002) argues that "pure" contextualism does not provide an adequate foundation for building a workable theory about human development, saying contextualism is a "diversive paradigm" that fails to connect the parts of the whole within itself or across time. "In pure contextualism, there is simply no prediction possible from one point of life to the next" (p. 72). A worldview that stresses only "the dispersive, chaotic, and disorganized character of life" does not lend itself to a workable theory of human development (p. 73). This hardly means that contextualism is without value. Lerner felt similarly about "pure" mechanism and organicism, saying each model alone is insufficient for building a workable theory of human development.