There’s an old saying that a chain is no stronger than its weakest link. When we talk about the entire planetary ecosystem, human stupidity is the most important constraint in the way of sustainable progress. Stupidity is a pervasive human condition because we are fundamentally stupid creatures. And unlike intelligence, stupidity knows no bounds. So here I present an animated discussion about the tyranny of the bounded rationality and the unbounded stupidity. This witty conversation between Santa Singh and Banta Singh is about the past, the present and the future of mankind.