Another example is multiplexed LED 7-segment displays. These distort in different ways depending on how you move your eyes. Even 400Hz is too low to display a t

Another example is multiplexed LED 7-segment displays. These distort in different ways depending on how you move your eyes. Even 400Hz is too low to display a typical one realistically. If you use motion blur you'll lose the eye-movement-dependent distortion of the real thing.