We face a probable future of nuclear-armed states warring over a scarcity of resources; and that scarcity is largely the consequence of capitalism itself. For the first time in history, our prevailing form of life has the power not simply to breed racism and spread cultural cretinism, drive us into war or herd us into labour camps, but to wipe us from the planet. Capitalism will behave antisocially if it is profitable for it to do so, and that can now mean human devastation on an unimaginable scale. What used to be apocalyptic fantasy is today no more than sober realism. The traditional leftist slogan ''Socialism or barbarism'' was never more grimly apposite.

Chapter 1, p. 8 - Why Marx Was Right (2011)