Based on the provided sources, the concepts of speciation and non-ergodicity (referred to in the texts primarily as “fission,” “historical systems,” or the lack of “laws of motion”) are significant because they explain why complex human systems cannot be unified into a single global order or predicted using natural scientific methods. They serve as critiques of the “autonomous individual” and the “goal-seeking” models of behavior.
1. Speciation: The Necessity of Fragmentation
In the context of Vickers’ systems thinking, “speciation” describes the tendency of social and political systems to split and differentiate as they grow in complexity, rather than homogenizing.
• The Fission of Cultures: Vickers argues that as the world becomes physically more interconnected (“one world”), it paradoxically splits into “more mutually antagonistic worlds than ever before”[1]. This occurs because individuals have a passionate need for a shared “appreciative system” (a set of tacit norms and values) to make life intelligible. As global systems become too vast to provide this shared sense of meaning, “inconsistent subcultures multiply by fission” to create smaller, more coherent groups where shared understanding is possible[1].
• Political Decoupling: This process is analogous to biological speciation. When a system develops multiple conflicting “essences” or missions that make it difficult to manage, it splits to form new systems, each with a unique essence[2]. Vickers notes that the “fission of a political entity turns intrasystemic strains into intersystemic conflicts,” which may be easier to bear and negotiate than internal incoherence[3].
• Significance: This challenges the “Enlightenment universalism” belief that humanity will eventually unite under a single rational culture. Instead, the sources suggest that stability requires a diversity of smaller, differentiated cultures (a “mosaic”) rather than a single universal one[4].
2. Non-Ergodicity: The Historical Nature of Systems
While the specific term “non-ergodicity” is less frequent in the text, the concept is extensively covered through the distinction between “historical” and “non-historical” systems. A system is non-ergodic if its future behavior cannot be reliably predicted from its past statistical averages because the underlying “rules” change over time.
• Doubly Historical: Human history is described as “doubly historical.” It is not just a sequence of events (like geology); it is mediated by culture, which develops under its own laws. Because the “appreciative settings” (the filters through which we see the world) change over time, the way humans respond to events also changes[5].
• No “Laws of Motion”: In correspondence with economist Adolph Lowe, the texts argue that social systems differ from physical systems because they lack invariant “laws of motion.” In classical economics (and physics), systems are treated as mechanical and predictable (ergodic). However, in modern social systems, behavioral regularities are not “given” by nature but are created by culture and institutions. When these cultural norms change, the “laws” of the system change, rendering past data useless for predicting the future[6][7].
• The River Analogy: Vickers illustrates this with the River Thames. To a geologist, the river is a physical system. But over time, the river’s behavior (its catchment area, its flow) is actually a product of history—changes in the Ice Age or human engineering. It is not a fixed datum but a historical process[8].
• Significance: This invalidates the use of purely “scientific” or mechanical models for managing society. Since the system is non-ergodic (its fundamental parameters change), we cannot rely on “prediction.” Instead, we must rely on regulation and cultural engineering—constantly adjusting our norms and actions to maintain stability in a changing environment[9][10].
Summary
• Speciation is the system’s structural response to complexity: splitting into smaller units to maintain internal coherence[1][3].
• Non-ergodicity is the system’s temporal reality: the rules of the game change as it is played, making the future unpredictable based solely on the past[5][7].
References
[1] [Book] Vickers - The Vickers Papers.pdf [2] The Appreciative Cycle.pdf [3] Blunden 2005 - Geoffrey Vickers and a systemic approach to globalization.pdf [4] [Book] Vickers - The Vickers Papers.pdf [5] [Book] Vickers - The Vickers Papers.pdf [6] [Book] Vickers - Rethinking the Future.pdf [7] [Book] Vickers - Rethinking the Future.pdf [8] [Book] Vickers - The Vickers Papers.pdf [9] [Book] Vickers - Rethinking the Future.pdf [10] [Book] Vickers - The Vickers Papers.pdf