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The computational bits left me feeling out of my depth at several points, but also feeling reassured that this wasn't science lite. And while the evolutionary bits were less challenging - and easier to read - they offered more than enough food for thought.
Apparently some people find the computation plus evolution theory controversial. Others find the ideas old hat. And Pinker himself seems to rub plenty of people up the wrong way for various reasons. Myself, I find the arguments fresh and convincing, and Pinker very enjoyable to read. He covers an awful lot of ground with great gusto, he packs the detail in and makes his points with wry humour.
A book to read once to get the gist and a second time to get the detail.
Pinker marries Darwin's theory of evolution to the latest developments in neuroscience and computation. He shows in detail how the process of natural selection shaped our entire neurological networks; how the struggle for survival selects from among our genes those most fit to flourish in our environment. Nature has produced in us bodies, brains and minds attuned to coping intelligently with whatever our environment demands. Housed in our bodies, our minds structure neural networks into adaptive programmes for handling our perceptions. Pinker concludes, "The mind is a system of organs of computation, designed by natural selection to solve the kinds of problems our ancestors faced in their foraging way of life."
Our beliefs and desires are information, allowing us to create meaning. "Beliefs are inscriptions in memory, desires are goal inscriptions, thinking is computation, perceptions are inscriptions triggered by sensors, trying is executing operations triggered by a goal." Pinker writes that the mind has a 'design stance' for dealing with artefacts, a 'physical stance' for dealing with objects, and an 'intentional stance' for dealing with people.
... Read more ›
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