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(8) The Generation and Communication of Meaning in Social Systems <http://ella.slis.indiana.edu/~efhardy/07netsci/submissions.html#social> Windows Program <http://ella.slis.indiana.edu/~efhardy/07netsci/submissions/meaning.exe> (1.5MB / .EXE ) Description: The program simulates the recursive, incursive, and hyper-incursive development of a representation (in this case Van Gogh's painting of the bridge of Arles). It can be shown that the incursive formulation of the logistic equation models not only the generation of an observer (Leydesdorff, 2005), but also the operation of a social system (Leydesdorff & Dubois, 2004). In addition to the communication of information, social systems also communicate meaning. Meaning can be generated incursively, but cannot be communicated without hyperincursion. ________________________________ Loet Leydesdorff, Amsterdam School of Communications Research (ASCoR), Kloveniersburgwal 48, 1012 CX Amsterdam. Now available: The Knowledge-Based Economy: Modeled, Measured, Simulated <http://www.universal-publishers.com/book.php?method=ISBN&book=1581129378> . 385 pp.; US$ 18.95