title: What is aliasing and how does it affect performance?
body: <p>At the GoingNative event, during the <a href="http://channel9.msdn.com/Events/GoingNative/GoingNative-2012/Interactive-Panel-Ask-Us-Anything-" rel="noreferrer">Interactive Panel</a> on Day2 at the 9 minute mark, Chandler Carruth says:</p>
  
  <blockquote>
    <p>Pointers create aliasing problems. They slow down your binaries not speed them up.</p>
  </blockquote>
  
  <p>What does this mean? Can this be illustrated with a (simple) example?</p>