After answering a few open questions of the same tags in a row, Aardvark's records should show us that even though we're not tagged as an expert in the tag "World War II Generals" or "Bob Barker's favorite cup cake frosting" or really any obscure tag we didn't initially think we were an expert in. Although, after having answered 30 or so questions that have appeared in a given topic area, Aardvark notifies us of this. Recommends that we add this tag to our expertise so there isn't a need to scour open questions, the questions will just come to us. More and more niche topics could be opened up globally. So that there is a greater specificity while maintaining a good chance the question will be answered by someone knowledgeable. As opposed to first searching the local network, then checking a wider array of people.