title: Why is the static keyword used in UITableViewCell identifiers?
body: <p>I've read up on "static" on several occasions, including just before posting this question.
  I'm still searching for an "Aha" though.</p>
  
  <p>In the context of UITableView's static comes up in Cell Identifiers in every piece of code I've looked at. For example in a recent CellForRowAtIndexPath:</p>
  
  <pre><code>    static NSString *defaultIndentifier = @"Managed Object Cell Identifier";
  </code></pre>
  
  <p>My question is why do we need and use "static"?</p>