"If the fate of previous civilisations can be a roadmap to our future, what does it say? One method is to examine the trends that preceded historic collapses and see how they are unfolding today. [...] The collapse of our civilisation is not inevitable. History suggests it is likely, but we have the unique advantage of being able to learn from the wreckages of societies past. [...] We will only march into collapse if we advance blindly. We are only doomed if we are unwilling to listen to the past."
"Collapse is a tipping point phenomena, when compounding stressors overrun societal coping capacity. We can examine these indicators of danger to see if our chance of collapse is falling or rising. Here are four of those possible metrics, measured over the past few decades:"