title: Why does substring slicing with index out of range work?
body: <p>Why doesn't <code>'example'[999:9999]</code> result in error? Since <code>'example'[9]</code> does, what is the motivation behind it?</p>
  
  <p>From this behavior I can assume that <code>'example'[3]</code> is, essentially/internally, not the same as <code>'example'[3:4]</code>, even though both result in the same <code>'m'</code> string.</p>