The main thesis of Steven Pinker’s latest book is that violence has declined dramatically over time and that we are now living in the most peaceful time in history, and to suggest reasons for this. The decline has not been uniformly steady but has a saw-tooth pattern of periodic upticks of violence followed by steeper drops leading to an overall decline over time.
This is not a proposition that is obvious since many people despair of the state of the world now with wars between nations, civil wars, genocides, and the brutal suppression of dissent seemingly taking place all over the globe. It is in order to counter this perception that Pinker has to write such a long book (running to nearly 700 pages even without the endnotes and citations), amassing the data and evidence and arguments necessary whenever one is making a counter-intuitive case. So the book is heavy with numbers and graphs that could easily become tedious except that Pinker has a deft writing style that lifts the reader whenever the going gets tough. The book has sparked considerable interest and on his website Pinker has responded to some of the reactions and criticisms.
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