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Language learning, like any other type of learning, is not a linear process and therefore cannot be deemed as predictable as some of these models of acquisition have hypothesized it to be. Minimal differences in initial conditions can cause very different results. Nevertheless, I consider that the previous attempts to explain SLA should not be disregarded because when they are put together they provide a broader view of the phenomenon. In this new perspective, a SLA model should be considered as a set of connections within a dynamic system that moves in the direction of the “edge of chaos” considered as a zone of creativity with the maximum potential for learning. 

PAIVA, V. L. M. O. Second Language Acquisition: Reconciling Theories. Open Journal of Applied Sciences, 2013, 3, 404-412. Disponível em: http://dx.doi.org/10.4236/ ojapps.2013.37050.