Spontaneous

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Spontaneous refers to systems that formed suddenly without a particular cause. This can happen in various ways, such as dissociation, or walk-ins.

Spontaneous is one of the four plural rings, and can be combined with other terms to describe mixed-origin systems.

Related Terms
Spontaneous systems are distinguished from other types such as traumagenic or parogenic, as they don't necessarily have any trauma, and were not created deliberately or via thought-based means. It was coined with adaptive & created labels.

Spontaneous falls under the endogenic umbrella.