I am intelligent and focused.

A phone face-down on the desk still costs you something. Some part of the mind keeps a hand on it, the way you keep half an ear on a baby monitor. Put it in another room and that thread goes quiet.

Focus is closer to a room condition than a virtue. Intelligence you cannot do much about in an afternoon; the room you can fix in under a minute, and the difference in what comes out the other end is not small.