# Calf > Calf: Noun. A young cow or ox. Before I walked from the Clojure space, I kept throwing around the idea of "ox", an ur-clojure. Ox was supposed to experiment with some stuff around immutable namespaces and code as data which never came to fruition. I found the JVM environment burdensome, difficult to maintain velocity in, and my own ideas too un-formed to fit well into a rigorous object model. Calf is a testbed. It's supposed to be a lightweight, unstable, easy for me to hack on substrate for exploring those old ideas and some new ones. ## License Copyright Reid 'arrdem' McKenzie, 3/5/2017. Distributed under the terms of the MIT license. See the included `LICENSE` file for more.