Those of you interested in the notion of randomness may want to check out "On the Effective Definition of 'Random Sequence'", a paper written by Michael Levin, Marvin Minsky, and me in 1965. For a paper copy, send a SASE (78 cents worth of stamps) to me: Rollo Silver / PO Box 219 / San Cristobal, NM 87564 If anyone can tell me how to post a highly formatted file, with equations, on the Internet, so that anybody can read it, pls let me know! That would be preferable to a paper copy -- but I don't know how to do it. Rollo Silver | e-mail: rollo@artvark.com | Artvark | Home page: http://www.artvark.com/artvark/ | PO Box 219 | Voice: 505-586-0197 | San Cristobal, NM 87564 USA | Compuserve 71174,1453 | =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=