The Birth of the Modern Myth: Frankenstein and the First Thought Experiment

On the evening of June 16, 1816, in a rented villa on the shores of Lake Geneva, a young woman of eighteen years sat before a flickering candle and watched a phantom take shape in the darkness of her mind. Mary Godwin—soon to become Mary Shelley—had been challenged, along with the four other occupants of Villa Diodati, to compose a ghost story. The Swiss summer had turned grotesque: unprecedented rains had transformed the lake country into a scene of perpetual twilight, thunderstorms rolling across the mountains every afternoon and evening, the very air thick with the ash of a volcanic eruption half a world away. The year 1816 would come to be known as the Year Without a Summer, a global catastrophe precipitated by the eruption of Mount Tambora in Indonesia, which had ejected so much sulfur dioxide into the atmosphere that crops failed across Europe and North America, that snow fell in June in New England, that the painter J.M.W. Turner would spend decades rendering skies of apocalyptic beauty.

But on that evening in June, none of the assembled company could have known that their gathering would produce something more enduring than a season's ghost story. The company itself was remarkable: Lord Byron, already the most famous poet in England, had fled to Switzerland to escape scandal and his own destructive appetites; Percy Bysshe Shelley, his protégé and the heir to one of England's great fortunes, had brought with him his seventeen-year-old lover and her half-sister; John Polidori, Byron's personal physician, was a young man desperate to prove himself worthy of the literary circles in which he moved. These five people—Byron, Shelley, Shelley, Godwin, and Polidori—would spend that summer reading German ghost stories aloud by firelight, arguing about the nature of the soul, discussing the latest scientific discoveries, and challenging each other to imagine horrors more terrifying than any that had yet been committed to paper.

Mary Shelley would later describe the circumstances of her creation in the introduction she wrote for the 1831 edition of *Frankenstein*:

> Perhaps I could not do this. Perhaps I could not imagine the same application of the same subject. You keep me in good hopes. We will each write a ghost story.

Thus she recorded Lord Byron's challenge to his assembled guests. And then she described the result:

> Many and long were the conversations between Lord Byron and Shelley, to which I was listened with a will. Perhaps a corporeal being, interspersed with particles of celestial origin, is not fit subject for the human mind. Perhaps the component parts of a creature of such elevated functions might not assemble in the manner which human power directed. But, however Iroscintillated or sparkled, the object escaped me; it was quickly dissipated.

But late in the evening, after hours of fruitless deliberation, as she lay in her bed unable to sleep, she saw the vision that would become *Frankenstein*:

> I saw the pale student of unhallowed arts kneeling beside the thing he had put together. I saw the horrible phantasm of a man stretched out, and then, on the working of some powerful engine, show signs of life, and stir with an uneasy, half-vital motion. A restless purpose animated the frame, and the muscles and sinews seemed to stir beneath the skin.

Here, in these few sentences from her introduction, Mary Shelley captured the essential drama that would define not only her novel but the entire genre she would inadvertently create. The scene she envisioned contains all the elements of what we now call science fiction: a scientist, a creation, an experiment, and an outcome that exceeds the creator's intentions or control. Victor Frankenstein kneels before his creature not in triumph but in horror—horror at what he has made, horror at the failure of his vision to match his intention, horror at the thought that he has disturbed boundaries that should have remained inviolate.

---

The story Mary Shelley crafted that summer in Switzerland would not be published until 1818, when it appeared anonymously in London with the full title *Frankenstein; or, The Modern Prometheus*. The novel achieved only modest commercial success in its initial appearance, but it immediately established itself as a work of profound cultural significance. Critics recognized that something new had entered the literary world—not merely a horror tale or a Gothic romance, but a meditation on the nature of creation, the responsibilities of knowledge, and the relationship between creator and created that would resonate through the centuries. In the nearly two hundred and ten years since its publication, *Frankenstein* has never gone out of print. It has been adapted for the stage, for film, for opera, for graphic novels. It has generated an enormous secondary literature in literary criticism, philosophy, and the history of science. And it has established a template for a new kind of fiction—one that uses imagined futures or imagined possibilities to examine questions that conventional narrative cannot adequately address.

This book argues that science fiction, as a literary genre and as a mode of thought, emerged from the same intellectual impulse as the philosophical thought experiment. Philosophers have long used imagined scenarios to test the boundaries of their concepts: Plato's cave, Descartes' evil demon, Rawls' original position, Thomson's violinist, the trolley problem. These are not empirical investigations but conceptual ones—they are designed to isolate a particular issue by constructing a simplified, controlled scenario in which we can see the relevant features more clearly than we can in the messy complexity of actual experience. When we engage with these thought experiments, we are not being asked to believe that such situations could actually occur; we are being asked to consider what our commitments and principles imply about how we should respond to such situations, and then to examine whether we are prepared to accept those implications.

Science fiction, I will argue throughout the pages that follow, performs an analogous function. By constructing imagined futures or alternative presents—futures shaped by technologies that do not yet exist, by social arrangements that have never obtained, by discoveries that have not yet been made—science fiction writers create scenarios in which we can examine our assumptions about human nature, about society, about knowledge and power and responsibility. The best science fiction is not mere prediction or extrapolation; it is philosophical thought experiment conducted through narrative, a way of asking "what if" that allows us to probe the limits of what we believe.

Mary Shelley's *Frankenstein* was the first great work of this kind, and it established themes and questions that would define science fiction for the next two centuries. But to understand why this is so, we must first understand what Shelley was working with—what intellectual currents she drew upon, what questions were already circulating in the culture of her time, what assumptions about creation and knowledge she inherited and transformed.

---

The year 1816 existed at a remarkable intersection of intellectual traditions. The Enlightenment had reshaped European thought in the preceding century, insisting that human reason was the proper instrument for understanding nature and for organizing society. The great scientific discoveries of the seventeenth and eighteenth centuries—Newton's mechanics, the circulation of the blood, the electrical nature of nerve impulses—had demonstrated that natural phenomena could be explained without reference to spiritual agencies, that the world was a mechanism susceptible to rational analysis. This confidence in human reason and in the power of scientific inquiry had produced not only genuine advances in human knowledge but also a philosophical optimism that saw progress as inevitable, that believed the application of r