- Research Article
1
- 10.1007/bf02207386
Artificial Life: A feast for the imagination
- Oct 01, 1990
- Biology & Philosophy
- Daniel C Dennett
In 1956 history was made at Dartmouth, at a summer conference organized by John McCarthy which inaugurated (and baptized) the field of Artificial Intelligence (AI). The fathers of the field were all there: McCarthy, Minsky, Samuel, Simon, Selfridge, and they took their inspiration from Alan Turing and John von Neumann, whose combined genius had given the world not only the serial computer, but also a strikingly clear vision of its cognitive powers. Thirty-one years later, in September of 1987, a meeting was held at Los Alamos which may in time overshadow the Dartmouth meeting and its aftermath: the first international Artificial Life (AL) conference, drawing together thinkers from around the world whose work might be said to owe its inspiration to one of John von Neumann's other great ideas: the idea of self-replicating cellular automata. Not that all workers in AL concern themselves directly with either selfreplication or cellular automata. Indeed one of the most striking features of the volume under review, the proceedings of the first Artificial Life conference, is the great diversity of approaches, goals, and grain-sizes of the simulations presented and discussed. This is an extraordinarily rich volume, exciting in tone, kaleidoscopic in its perspectives and contributions. AI is known for its simulations of cognitive competences modeled "from the top down" and perhaps the most basic difference between AI and AL is that most AL simulations are adamantly bottom up in design philosophy. While some of the virtues of bottom-up modeling are now familiar, especially in the manifestos of the connectionists, broader, deeper reasons are offered here. In Vehicles (MIT Press, 1984), Valentino Braitenberg put forward his "law of uphill analysis, downhill synthesis" which made the compelling point that it is simply much harder to figure out the inner machinery of something whose behavior you have data on
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