R6RS version of Metacat 1.2; can be run in REPL in eg Chez Scheme or Racket (create non-gui temp.ss as described in metacat.ss and open in Dr Racket).
Edit the settings in metacat.ss before running Metacat for the first time.
(Extract from Metacat Home Page:)
"The definitive source of information about Metacat is [James B. Marshall's] PhD dissertation, Metacat: A Self-Watching Cognitive Architecture for Analogy-Making and High-Level Perception, Department of Computer Science, Indiana University, Bloomington, 1999. A PDF version is available here:
See http://science.slc.edu/~jmarshall/metacat for more info.