Ed Pegg Jr <ed@mathpuzzle.com> reports Eric Raymond is advocating that open source computer programmers (hackers) use the Game of Life Glider as their emblem. http://www.catb.org/~esr/hacker-emblem/ This opens up all sorts of possibilities. Eric is claiming only the shape .o. ..o ooo There are 15 others available for other purposes or organizations. I've always been partial to ooo ..o .o. which seems more upward looking. Covert hackers might use oo. .oo o.. a suitably obscure glider. NASA could adopt .ooo o..o ...o ...o ..o. and the State of Utah might use .o. o.o o.o .o. Rich rcs@cs.arizona.edu