title: Activity with singleInstance launchMode and a new Thread
body: <p>I'm a bit confused really. When it says that </p>
  
  <p>Activities with <strong>singleInstance</strong> launchmode uses the singleton pattern, and that instance will be the root activity of a <strong>new task</strong></p>
  
  <p>When it says <strong>new task</strong>, does it mean that the launching activity will get executed in a new <strong>thread???</strong> Or the android system just uses <strong>flags</strong> to control activities navigation internally with datastructures within the <strong>Main Thread</strong> </p>