Asa and other creativity machines (see R. Jones, Trans. Kan. Acad. Sci., vol. 102, 1999, pg. 32) generate new ideas in the ways described in my blogs of 12 Feb and 23 Oct 2015. But part of the creative process is the subsequent evaluation of new ideas. As Asa continues to interact with its environment concepts (ideas) that are not useful are strongly modified or are deleted altogether.