A couple weeks ago, I was having a tough time focusing. The culprit turned out to be a little red dot in my NetNewWire dock icon – the unread post count. I’ve unchecked that count in the preferences and my ability to focus has increased (Manton Reece did the same).
First, biologically, our peripheral vision is more sensitive than our direct vision. Second, our eyes are highly sensitive to the color red. Needless to say, tiny red dots arbitrarily showing up in the corner of computer screens are highly distracting.
Next step, find a way to turn off Apple Mail’s unread count.