Acharya Prashant addresses the philosophical debate between free will and predestination, particularly through the lens of neuroscience and Vedanta. He explains that most human actions are mechanical, driven by a chain of cause and effect similar to biological or chemical reactions. Using the example of drinking water after consuming coffee, he illustrates how current choices are often determined by preceding events. He argues that as long as one identifies with the ego as the 'doer,' there is no true free will, only the illusion of it, which leads to suffering. True realization involves understanding that actions are simply happening rather than being 'done' by an individual self. When the claim over doership is dropped, the doer vanishes, and with it, the suffering associated with those actions.