Prerequisites: A computer with 1 or more CPUs. Preferably more. Java 1.6 leiningen (https://github.com/technomancy/leiningen)

export JAVA_OPTS=-Xmx2048m

lein repl => (use 'levenshtein/core) => (step1) . . . . Look at your CPU activity. After it's done, type this: => (step2) . . . . Look at your CPU activity. After it's done, type this: => (print-result)

The size of the causes social network is: 78,482

Distributed under the Eclipse Public License, the same as Clojure.