If you open Vue Devtools, you will be able to see the mutators committed in the Vuex section:
Every 2 seconds, there should be a new nextLine mutator. I suggest that you also expand the actors array and see what's inside. You can even take a peek at the currentActor and the currentLine and watch them go in circles.
If you feel adventurous, you can even add a third blabber:
<div id="app"> <blabber></blabber> <blabber></blabber> <blabber></blabber> </div>
You will discover whether the blabbers reorganize themselves in a sensible fashion, or whether the system we put in place for two blabbers won't work for three.
