The actors didn't know that they were acting. They had been assembled with each neuron perfectly constructed to inform them of a history that never existed. Once placed upon the stage each man, woman and child performed superbly, behaving with a sense of self-determination that was itself a lie.
The drama was a short one. The actors behaved with horror and died by the billions as missiles left their silos and followed ballistic trajectories to their destinations. When the play was complete the stage was blackened and uninhabitable.
Some say the creator is a genius. Others claim that he's mad.