"It would be some consolation for the feebleness of our selves and our works if all things should perish as slowly as they come into being; but as it is, increases are of sluggish growth, but the way to ruin is rapid." Lucius Anneaus Seneca, Letters to Lucilius, n. 91

The Seneca Book by Ugo Bardi




Springer: The Frontiers Collection

The Seneca Effect

Why Growth is Slow but Collapse is Rapid

Authors: Bardi, Ugo

Presents wisdom from an ancient Roman Philosopher that you can use today. Explains why technological progress may not prevent societal collapse. Provides a true systems perspective on the widespread phenomenon of collapse. Highlights principles to help us manage, rather than be managed by, the greatest challenges of our times.
The essence of this book can be found in a line written by the ancient Roman Stoic Philosopher Lucius Annaeus Seneca: "Fortune is of sluggish growth, but ruin is rapid". This sentence summarizes the features of the phenomenon that we call "collapse," which is typically sudden and often unexpected, like the proverbial "house of cards." But why are such collapses so common, and what generates them? Several books have been published on the subject, including the well known "Collapse" by Jared Diamond (2005), "The collapse of complex societies" by Joseph Tainter (1998) and "The Tipping Point," by Malcom Gladwell (2000). Why The Seneca Effect?
This book is an ambitious attempt to pull these various strands together by describing collapse from a multi-disciplinary viewpoint. The reader will discover how collapse is a collective phenomenon that occurs in what we call today "complex systems," with a special emphasis on system dynamics and the concept of "feedback." From this foundation, Bardi applies the theory to real-world systems, from the mechanics of fracture and the collapse of large structures to financial collapses, famines and population collapses, the fall of entire civilzations, and the most dreadful collapse we can imagine: that of the planetary ecosystem generated by overexploitation and climate change. The final objective of the book is to describe a conclusion that the ancient stoic philosophers had already discovered long ago, but that modern system science has rediscovered today. If you want to avoid collapse you need to embrace change, not fight it. Neither a book about doom and gloom nor a cornucopianist's dream, The Seneca Effect goes to the heart of the challenges that we are facing today, helping us to manage our future rather than be managed by it.

Wednesday, June 13, 2012

Seneca's cliff goes iPad



originally published on Cassandra's Legacy on Wednesday, June 13, 2012


My post on the "Seneca cliff" has inspired Hannes Rollin to create an App for the iPad that can be used for running the model for different input parameters. I must confess that I don't own an iPad, so I can't test the model, but it seems to me a very interesting idea. So, here is the story, with many thanks for Hannes for his interest in my work.

Guest post by Hannes Rollin

Many of you who are reading this post may be familiar with one or the other of Ugo Bardi's mind-sized models, where he employs system dynamics to illustrate fundamental economic and natural processes in a general way. The model which impressed me the most was the one Ugo called Seneca's Cliff – a very simple model capable of generating an economic decline much faster than previous growth had been, a fact already remarked by Seneca. Hence the name.

I give you a quick summary of the model. You have three stocks (imagine them as containers), namely Resources, Economy and Pollution. Now, a given fraction of Resources is extracted and used to run the Economy. Subsequently, a fraction of the Economy spawns Pollution. The flow is furthermore dependent upon degradation or restoration (negative degradation) of each stock. If you ever asked yourself where the nice curves come from, here is the answer: The content of the stocks is plotted against time.

Ugo tweaked the parameters to give a Resource depletion and Economic activity curve very similar to one of the more famous outputs of the WORLD3 model of the Limits to Growth team. I have set this result as the default settings of the iPad app.


The interesting thing is that the model can evolve scenarios quite distinct from the standard run above. If you model a renewable Resource stock with negative resource loss rate, you get a (potentially infinite) sequence of boom-and-bust cycles similar to H.T. Odum's simulation of locust pests.



Although this run looks catastrophic as well with long periods of almost zero economic activity, it already maintains two highly optimistic assumptions: First, resources are strictly renewable no matter how much strained, and second, that pollution (gray), which spikes sharply according to the initial economic peak, is handled completely by natural self-repair.

It is even possible to create something like a steady-state economy, a slightly meandering stream of low but positive activity. When you play with the app, however, you will see that combinations of parameters leading to such favorable circumstances are hard to find, and the solution is highly unstable – wiggle any slider in any direction, and you are quickly back to extinction or boom-and-bust.


Note that in this run high growth is followed by rapid decline and finally zero
growth (brown). The steadiness of the Economy has its price: economic activity is pretty low compared to the once-in-a-lifetime peak at the beginning, and the Resource stock never again reaches its initial wealth due to continual harvesting. The are many more scenarios this simply excellent model can provide, for instance two or three consecutive peaks of activity, increasing or decreasing, followed by die-off (stable solution) or steadiness (unstable solution).

As an apology, I am certainly aware of the irony of porting a model for the simulation of economic decline to the flagship of techno-narcissistic consumerism, klickibunti self-distraction, and perpetual remote controlling of human resources. But, you know, the spirit speaks in many tongues. There is certainly something to gain by playing with the model rather than merely studying formulas or staring at static graphs. Just like the Pythagoreans presumably played with pebbles to gain a feeling for the relation between triangles and squares, you may develop a feeling for the precariousness of stability and, perhaps, understand how inevitable and fierce a destiny is able to fulfill itself.

This said, I would only wish to add that the app is, of course, free, and anyone who wants to learn the background or extend the model is invited to mail me (Hannes Rollin) at initials at sabik dot de. The Seneca cliff App has recently been approved to App.

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