Whenever these studies come up, it makes me wonder "how exactly are they defining task and multi-task here". For example, driving involves keeping the car at a

Whenever these studies come up, it makes me wonder "how exactly are they defining task and multi-task here". For example, driving involves keeping the car at a reasonable, avoiding obstacles on and off the road, deciding whether you need to turn soon, noticing the condition of the vehicle and related things. These could all be considered tasks and are indeed difficult to keep straight when one begins driving. But they can indeed be done together. And while it might be easier to somehow do each separately, the combined task of driving isn't possible without this "multitasking". I understand that nearly everyone talking about multitasking here is referencing whether or not tasks at work can be efficiently combined. But I don't think that addresses the larger issues (what's a single task, when two tasks intersect, how can you not multitask, is the difficulty of "multitasking" a limitation of humans or is it that the task itself becomes inherently more difficult).