="core/arguments.html">Arguments</a></span></dt>
<dt><span class="section"><a href="core/nothing.html">Nothing</a></span></dt>
</dl></div>
<p>
        Actors are composed to create more complex actors in a tree-like hierarchy.
        The primitives are atomic entities that are like the leaves in the tree.
        Phoenix is extensible. New primitives can be added anytime. Right out of
        the box, there are only a few primitives, these are all defined in the Core
        module.
      </p>
<p>
        