title: When a variable goes out of scope does that mean it doesn't exist?
body: <p>I'm not sure I understand scope - does an out-of-scope variable (I'm using Ruby) exist in memory somewhere or does it stop existing (I know you can't access it). <strong>Would it be inaccurate to say that an out-of-scope variable does not exist any more?</strong></p>
  
  <p>Maybe this is a philosophical question.</p>