To me, natural systems are systems which no one, no consciousness, had to set up and organize. This is studied in PMR science and mathematics, which are not looking at consciousness in any case. I was leaving out the tech words like self organizing systems and emergent properties. But you want it both ways. So don't talk about natural systems and talk about self organization and emergent properties. When science and mathematics talk about these properties, they find them in the arrangement of trees in forests. Is that natural enough for you? They find these properties in the WWW of the Internet servers if you prefer that scope for your 'nature'. The LCS is certainly a large and complex system, larger and more complex than any other even at that point within its development, and is in fact fully 'in play' at this point. We are talking about how Consciousness arose within the LCS. Consciousness did not need to exist for IUOCs and the RWW to arise. But they were necessary for Consciousness to arise.
Self organization: http://en.wikipedia.org/wiki/Self-organization
Self-organization is a process where some form of overall order or coordination arises out of the local interactions between the components of an initially disordered system. This process is spontaneous: it is not necessarily directed or controlled by any agent or subsystem inside or outside of the system. It is often triggered by random fluctuations that are amplified by positive feedback. The resulting organization is wholly decentralized or distributed over all the components of the system. As such it is typically very robust and able to survive and self-repair substantial damage or perturbations. Chaos theory discusses self-organization in terms of islands of predictability in a sea of chaotic unpredictability.
Self-organization occurs in a variety of physical, chemical, biological, robotic, social and cognitive systems. Common examples include crystallization, the emergence of convection patterns in a liquid heated from below, chemical oscillators, swarming in groups of animals, and the way neural networks learn to recognize complex patterns.
Emergent Properties: http://en.wikipedia.org/wiki/Emergence
In philosophy, systems theory, science, and art, emergence is a process whereby larger entities, patterns, and regularities arise through interactions among smaller or simpler entities that themselves do not exhibit such properties.
Emergence is central in theories of integrative levels and of complex systems. For instance, the phenomenon life as studied in biology is commonly perceived as an emergent property of interacting molecules as studied in chemistry, whose phenomena reflect interactions among elementary particles, modeled in particle physics, that at such higher mass—via substantial conglomeration—exhibit motion as modeled in gravitational physics. Neurobiological phenomena are often presumed to suffice as the underlying basis of psychological phenomena, whereby economic phenomena are in turn presumed to principally emerge.
Given a sufficiently large and complex system, I consider Consciousness as an emergent property of the Larger Consciousness Systems. The LCS first self organizes by the creation of the IUOCs interconnected by the RWW. Then Consciousness emerges from the LCS, based upon the prior self organization which resulted in the IUCS and the RWW.
Only if you give all of the details and technicalities can you really pull together the whole of the conceptualization. But many don't want to deal with all of that and have to wrap their minds around all that complexity and detail. Which version do you really want?