The Science of Discworld II

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Like its predecessor, this book features a blend of Discworld fantasy by Terry Pratchett and popular science commentary from Ian Stewart and Jack Cohen. In the Discworld narrative, the Unseen University wizards revisit their accidental creation, Roundworld—our world, devoid of magic. However, it is being influenced by malevolent elves, who thrive on fear and superstition, complicating humanity's evolution. This sets the stage for Stewart and Cohen to explore how stories shape human intelligence, whether as spells, memes, or lies. These narratives serve as the equivalent of magic in Roundworld, existing only in our minds, or "headology," as Granny Weatherwax describes it. As the wizards grapple with time travel to correct Roundworld's history amidst elvish chaos, they seek Granny's guidance. To foster rational thinking, Roundworld requires transcendent fictions, symbolized by the works of William Shakespeare, whose birth must be ensured. The non-fiction chapters cover a wide range of topics, including astrology, cargo cults, and the evolution of species, reflecting humanity's tendency to prioritize engaging stories over facts. The Discworld segments, though occasionally brief, are fast-paced and humorous, culminating in unscripted action during a famous play's opening night. This book is both entertaining and thought-provoking, delivering laughter alongside insights.