How a mutant conqueror shattered the mathematical certainty of a galactic empire's future

Countries & Cities · Published 3 October 2026 Swipe more like this →

In short: In Isaac Asimov's classic Foundation and Empire, the Foundation's rise is deemed inevitable by the science of psychohistory. Yet, the arrival of a mysterious mutant known as the Mule, who can manipulate human emotions, forces a reckoning with the limits of prediction and the fragility of even the most calculated civilizations.

Published in 1952, Foundation and Empire serves as the second installment in Isaac Asimov's foundational trilogy. The narrative is split into two distinct parts: 'The General' and 'The Mule.' The first story follows General Bel Riose, a military leader modeled after the historical Roman general Belisarius, as he attempts to crush the Foundation on behalf of the Galactic Empire. Despite his tactical brilliance, Riose is ultimately thwarted not by military defeat, but by the systemic decay of the Empire itself. As Ducem Barr explains, the Empire's structure necessitated that a strong Emperor eliminate any successful general to maintain power, rendering the Foundation's survival a mathematical inevitability.

The second part introduces a radical shift in the series' trajectory. The Mule, a mutant with the ability to sense and manipulate the emotions of others, emerges as an unpredictable variable that the Seldon Plan—a predictive model based on mass psychology—failed to account for. While the Foundation's leaders mistakenly anticipate a civil war with local traders, the Mule systematically conquers independent systems and eventually the Foundation itself. His power creates a crisis of faith in the deterministic nature of psychohistory, as the Foundation's technological superiority proves useless against his mentalic influence.

The story culminates in a desperate search for the Second Foundation, an organization focused on mentalics rather than physical science, which the Mule views as the final threat to his dominion. Through the perspective of characters like Bayta and Toran Darell, the narrative explores the tension between human agency and historical inevitability. The Mule's conquest marks a pivotal moment in the series, shifting the focus from the decline of a physical empire to the internal struggle for the future of galactic civilization. The volume remains a landmark in science fiction, having received a 1996 Retro-Hugo Award for 'The Mule' and contributing to the trilogy's 1966 Hugo Award for Best All-Time Series.

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