This seminar addresses the theme of ecological limits by starting from a question that is as simple as it is elusive: why does our species struggle to recognize the material boundaries within which life on the planet unfolds? Through examples drawn from ecology — from the well-known story of the reindeer on St. Matthew Island to the case of the English butterflies — the presentation shows how ecosystems are governed by dynamics of growth, feedback, and collapse that are often counterintuitive. Building on these stories, the discussion broadens to the energetic and historical dimension of human civilization, linking population growth and increasing consumption to the availability of finite resources. The seminar then focuses on some key figures in the history of the idea of limits, from Marion King Hubbert to Aurelio Peccei and the Club of Rome, up to the systemic models developed in World Dynamics and The Limits to Growth, which anticipated many of today’s ecological challenges. In conclusion, the seminar offers a reflection on the so-called “Seneca effect”: the possibility that processes of decline may unfold much more rapidly than phases of growth. The guiding thread throughout is the idea that limits do not signify the absence of development, but rather constitute a structural condition of every complex system, both natural and human, and that the real challenge lies in recognizing them before they emerge in the form of crisis.
Il seminario affronta il tema del limite ecologico a partire da una domanda tanto semplice quanto elusiva: perché la nostra specie fatica a riconoscere i confini materiali entro cui si svolge la vita sul pianeta? Attraverso esempi tratti dall’ecologia — dalla celebre vicenda delle renne dell’isola di San Matteo al caso delle farfalle inglesi — viene mostrato come gli ecosistemi siano regolati da dinamiche di crescita, retroazione e collasso spesso controintuitive. A partire da queste storie, la riflessione si allarga alla dimensione energetica e storica della civiltà umana, mettendo in relazione l’aumento della popolazione e dei consumi con la disponibilità di risorse finite. Il percorso si sofferma quindi su alcune figure chiave del pensiero dei limiti, da Marion King Hubbert ad Aurelio Peccei e al Club di Roma, fino ai modelli sistemici di World Dynamics e The Limits to Growth, che hanno anticipato molti dei nodi ecologici contemporanei. In chiusura, il seminario propone una riflessione sul cosiddetto “effetto Seneca”: la possibilità che i processi di declino siano molto più rapidi delle fasi di crescita. Il filo conduttore è l’idea che il limite non sia assenza di sviluppo, ma condizione strutturale di ogni sistema complesso, naturale e umano, e che la vera sfida consista nel saperlo vedere prima che si manifesti in forma di crisi.
Sapiens, Reindeer, Monkeys and Other Animals: The Invisible Ecological Limit
celi luciano
2026
Abstract
This seminar addresses the theme of ecological limits by starting from a question that is as simple as it is elusive: why does our species struggle to recognize the material boundaries within which life on the planet unfolds? Through examples drawn from ecology — from the well-known story of the reindeer on St. Matthew Island to the case of the English butterflies — the presentation shows how ecosystems are governed by dynamics of growth, feedback, and collapse that are often counterintuitive. Building on these stories, the discussion broadens to the energetic and historical dimension of human civilization, linking population growth and increasing consumption to the availability of finite resources. The seminar then focuses on some key figures in the history of the idea of limits, from Marion King Hubbert to Aurelio Peccei and the Club of Rome, up to the systemic models developed in World Dynamics and The Limits to Growth, which anticipated many of today’s ecological challenges. In conclusion, the seminar offers a reflection on the so-called “Seneca effect”: the possibility that processes of decline may unfold much more rapidly than phases of growth. The guiding thread throughout is the idea that limits do not signify the absence of development, but rather constitute a structural condition of every complex system, both natural and human, and that the real challenge lies in recognizing them before they emerge in the form of crisis.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.


