Acharya Prashant explains that what we commonly perceive as free choice is actually an expression of environmental conditioning rather than true individuality. He argues that our preferences in food, sports, and even intimate matters like love are dictated by the society, family, and culture we are born into. This process creates an illusion of power and control for the ego, while in reality, the mind operates like a programmed machine responding to external inputs. He illustrates this with the example of a computer program that reacts predictably to positive or negative values, suggesting that humans similarly react based on their social programming.