There is a ghost hovering around the world. Its name is “The Peak”. In a way, it is an obvious concept: if we exploit a non-renewable resource, its production is bound to start from zero at the beginning of its exploitation and go back to zero when such resource is completely exhausted. Between these two extremes, there is bound to be a point of maximum production, this can be called “peak production”. It is a general phenomenon affecting not only non-renewable resources but also renewable ones, if we exploit them quicker than they can be replenished.  So, understanding the mechanisms leading to peak production and their characteristics is crucial to comprehending that nebulous entity – nowadays called “civilization” – that could not exist in its current form without a...