Is humanity on the cusp of engineering a utopia, or are we walking toward an ethical precipice? In this episode of The Cabinet of Science and Fiction, we deeply analyze the bioethical stakes of the Posthuman movement. We trace the philosophical origins of transhumanism—from cybernetics to new biotechnologies—that promise radical human enhancement. A central focus is the revolutionary CRISPR-Cas9 gene editing technology and the heated global debate over its use in the human germline. We examine the tension between the desire to transcend human limits and the concerns about defining the 'biological self' in an age of implants and genetic code manipulation. Tune in to explore the fine line between advancement and ethical crisis.