The way to convince yourself your eyeball isn't moving is to touch your actual eyeball with your fingertip -- like press lightly against the left corner side of your left eyeball with your left index finger -- and then switch your gaze back and forth between the two letters. As long as your viewing distance is correct, you won't feel any movement. (You may have to back your head away from the screen. I'm viewing from a distance of arm's length.)
On the other hand, if you look back and forth between adjacent words, then you can feel physical eye movement.
sillysaurus2|12 years ago
The way to convince yourself your eyeball isn't moving is to touch your actual eyeball with your fingertip -- like press lightly against the left corner side of your left eyeball with your left index finger -- and then switch your gaze back and forth between the two letters. As long as your viewing distance is correct, you won't feel any movement. (You may have to back your head away from the screen. I'm viewing from a distance of arm's length.)
On the other hand, if you look back and forth between adjacent words, then you can feel physical eye movement.