In your example you (human) created a file and you can now request the content of that file (from your filesystem) at any point. In the given example there's a

In your example you (human) created a file and you can now request the content of that file (from your filesystem) at any point. In the given example there's a tracker (updated by humans) and you can see the current state of the tracker at any time (from their database). I'm not sure what the distinction is here if you consider one realtime and the other not.