Acharya Prashant explains that the value of any action, including a debate, is determined by the intent of the actor rather than the action itself. He contrasts modern debates, which are often loud arguments driven by the ego's desire to dominate and self-preserve, with ancient philosophical discussions. Using the example of Adi Shankara and Mandana Mishra, he illustrates that a sincere debate is a joint exploration of truth where participants are willing to rectify their positions and surrender to merit. He suggests that in academic settings, marks should be awarded to those who show the sincerity to accept a better point made by an opponent.