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Multiple Interactions take place in complex systems simultaneously and continuously.
Multiple Interactions take place in complex systems simultaneously and continuously.
Interactions are essential in all complex systems, as no patterns or outcomes may form without interactions [5]. To clarify, the interactions of a complex system specifically refer to those taking place among the individuals within the system, instead of the interactions between two systems.
The interactions in a complex system often involve more than one causal process.
Except for in some extreme cases, individuals' behaviors In complex systems can often be broken down into a set of simple rules. Many of these rules establish causal relationships between two individuals. For the complex systems where individuals' behaviors are influenced by multiple causal processes, the system outcomes have more than one cause. For example, because the bark beetle reproduction and survival are affected by host trees and temperature, the bark beetle population size can be impacted by available host trees, rising temperatures, and forest management strategies.
Multiple causal processes enable interactions among individuals of the same and different types. Within an ecosystem, it is easy to see how producers interact with primary consumers, how primary consumers interact with secondary consumers, and so on. Meanwhile, individuals of the same types can interact with one another through competition, mating, and forming groups.
Multiple interactions in the beetle-forest system
Multiple interactions in an ecosystem
Individuals of the same type interact with one another through competition, mating, and forming groups
Interactions in a complex system are simultaneous and continuous.
In a complex system, multiple interactions occur at the same time. The system doesn't wait for one event to finish before another happens; everything happens in parallel, creating a network of interconnected events. We can consider a web-like interaction style rather than a single chain. Meanwhile, these interactions are ongoing because the elements within a complex system don't stop influencing each other. For example, the behavior of living organisms in an ecosystem is not limited to a single moment—it is constantly happening as they respond to each other and their environment. Similarly, molecules in a chemical reaction always interact until the reaction reaches completion. In reversible reactions, molecules never stop reacting but maintain a dynamic equilibrium. In short, the dynamics of the system are always in motion, with changes and responses happening without interruption [6].
With interactions occurring simultaneously and continuously, feedback loops can form within a complex system to amplify a small action. For example, viral videos and challenges can spread rapidly on social media, from a single post to gaining millions of views.
Simultaneous and continuous interactions in diffusion
Simultaneous and continuous interactions via social media
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