title: What does 'semicolon' mean as a unit of size
body: <p>On the <a href="http://www.iolanguage.com/" rel="nofollow">Io home page</a> it mentions its small size, but it uses a unit of measure I've not seen before:</p>
  
  <blockquote>
    <p>small vm (~10K semicolons)</p>
  </blockquote>
  
  <p>Is this just the size in characters (~bytes), or is there something more subtle going on here?</p>