About Worlds
A world is a mechanism that the author uses to simulate/illustrate a
concept. They're numbered 1 onward.
Screen shots of worlds are provided from time to time.
Also, the source code for each world is also provided. They are
packaged as worldNNN.tar.bz2. Properly unpackaged, they will compile
with the 'make' instruction on most unixes with GTK2 installed. They
can be run by executing ./scribble-simple.
World software is not copyrighted by this author.