We will explore how the Enlightenment fantasies of pure rationality, endless progress and human power and perfectibility set the stage for the world we live in. For better or worse. Are we happier, healthier, or better off in any ways because of these ideals? Are there limits to what rationality can do for us? Is there a better way? “Reason's last step is the recognition that there are an infinite number of things which are beyond it.” ― Blaise Pascal