Speculative Influence explores the profound connection between speculative fiction and real-world ethical and scientific dilemmas, revealing how imaginative storytelling serves as a powerful tool for foresight. It argues that science fiction isn't just escapism, but a vital form of thought experiment, anticipating scientific advancements and shaping ethical frameworks. The book highlights how these narratives allow society to debate the implications of new technologies, such as AI and biotechnology, before they become widespread realities. Consider, for example, how the portrayal of AI sentience in literature mirrors philosophical discussions of machine rights, or how climate engineering is presented in film as a means to cope with the dangers of a warming planet. The book examines the history of speculative genres, from Frankenstein to cyberpunk, demonstrating recurring anxieties about science and technology. Moving through the intellectual history of speculative fiction, the book shows how ethical issues in science, technology, and society were first engaged through creative license. Structured in three parts, it introduces a theoretical framework, analyzes specific scientific developments, and synthesizes findings for practical application. This approach allows the book to offer unique insights for policymakers, scientists, and artists seeking to harness speculative thinking for societal betterment.