“…However, predictability is hardly feasible, especially due to the complex operations of L2 learning as well as the complex structure of human mind. Suffice it to say, implementing the task-as-process (see Breen 1989;Ellis 2003;Seedhouse 2004Seedhouse , 2010 is not a simple undertaking to be carried out with controlled measure of any learning variables within the cognitive and social domains; rather, it requires the consideration of the learner's idiosyncratic, cognitive, cultural, and social and/or ecological factors, the variable features of a dynamically complex, communicative environment of L2 learning, the changing, distinctive characteristics and functions of the task(s) in action, the influx of the construct-irrelevant factors coming around as obstacles to the learning process, etc. (see, e.g., Ellis 1990Ellis , 1994Segalowitz 2003;Skehan 2000).…”