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Try enlivening a party with this question: "What's on your mind?" When the babble has become truly raucous, ask another: "How did it get in there?" This book is about those questions, how we came to consider them, and how we've tried to learn to understand them. Interleaving a fantasy story with analyses of scientific thinking about thinking carries certain risks. In the hands of this trio, however, the balance is successfully achieved. Don't be deceived by the name of Terry Pratchett as lead author of this volume. There are wonderful touches of humour in this book, but the basic theme is a serious question: "Who are we, and how did we get to be this way?"
This book repeats a technique used in The Science of Discworld I - two stories in parallel. Discworld is a mirror of Roundworld. The wizards used the computer Hex to construct Roundworld in SoD I. They were shocked at the many differences. Shape was only a beginning. They were confronted with the many ways in which life evolved on Roundworld. They were also forced to reflect on how illogical it seemed for living things to struggle for survival, only to be snuffed out by natural forces. In this sequel, the most advanced life form is going to be confronted with an extinction threat noted in the first book. How to deal with it? It turns out that the best solution is to ally with a great evil force.
Humanity has a strange and illogical heritage, this book tells us. As our forebears learned to cope with changing conditions on the African savannah [or on lake shores or even in the sea] they learned to stand upright, to grasp tools, and to think. This has always seemed like a long, continuous progression of small improvements over time - a process in the best Darwinian gradualist sense. This trio of authors reminds us that this picture is false for humans. After a good start, our ancestors simply halted in place, keeping social, mental and technological progress at bay. The "pause" went on for a hundred millennia. At some point about fifty thousand years ago, all that changed. We went from the "standing ape" to become "the storytelling ape". Thinking and speaking resulted in story-telling.

In trying to understand ourselves and our surroundings, Pratchett and his colleagues see humans as inventing stories for explanations of nature's mysteries. Magic, allied with the element "narrativium", runs the Discworld. On the Roundworld, magic has to be invented. Narratives are the means to bring it about and spread it around. Every human society forges its own stories which are imparted to children as "Make-A-Human Kits". Each society creates explanations which become legends which become religions as one example. While we might dispute whether we've "progressed" argue the authors, there's no question that once the process started, humans changed rapidly resulting in what we see around us today. This "advance", they argue, was not inevitable. While we may not yet understand what prompted this change, we can list alternatives and reject the impossible or implausible. That's why the Discworld parallel story comprises part of this book. It teaches you how to recognise the difference.
To long-standing Discworld fans, this book will be a serious challenge. Unlike the "laugh per page" of Pratchett's other works, he and his colleagues confront the most serious of issues: "where do we come from?" and "where are we going?". Cohen and Stewart, who have dealt these questions elsewhere, and Terry Pratchett, who posits them with every book, have produced a significant contribution in attempting an answer. The use of the parallel story line offers great opportunities for the reader to "step outside the box" and consider life and beliefs from a detached view. Pratchett has long confronted us with ourselves. Adding Cohen and Stewart's scientific and cognitive abilities to his imagination results in a compelling and informative read. [stephen a. haines - Ottawa, Canada]
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on October 22, 2003
The authors use the Discworld setting to provide some genuine insight into the way in which we think about the world around us. This is science in the biggest sense, as a way of understanding the world and our minds, not just a set of rules for how molecules are constructed. The Discworld frame story is entertaining -- kind of slight, I suppose, but more compelling and plot driven than the frame from the previous Science of Discworld book.
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on August 30, 2013
I'm a total Terry Pratchett fan. So I have to read it to see what happens. It is number two of four volumes. I had to buy it to read the rest.
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on April 22, 2015
Too much science for a fan of TP's humour, but if you like science then its a great read!
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on October 21, 2003
Ok first of all I love Terry Pratchett books, particularly the Discworld Series. However I really hate it when people who write reviews are not (Ali or not even) literate [sorry [...] For example the review before mine read as follows;
Reviewer: b from Bland
I haven't read it but it looks good all terry prafetchett books are goos and thir one has science 2.
Okay b from Bland maybe next time try not writing a review and then I will not make fun of you.
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