params id is gonna be available to us because one of the things that routing sub system does is it matches up these wild card tokens beginning with the colon to the corresponding parts of the url and it sticks them into the param hash for us. &amp;gt;&amp;gt; and again, i'm lying right params isn't really hash all right but it. &amp;gt;&amp;gt; kwak, kwak, kwak, kwak, kwak. &amp;gt;&amp;gt; okay?