title: Activity in paused state
body: <p>There's a sentence in the definition of activity state 'paused': "...but can be killed by the system in extremely low memory situations."</p>
  
  <p>Does it mean that there's no way to develop alarm clock which can guarantee it will go off "no matter what"?</p>
  
  <p>If it can simply be killed, people will be late to work.</p>