the problem is not rational knowledge, its misapplying rational knowledge in circumstances where it does not apply.
its extremely easy to reproduce, and I have not encountered anyone who fails to see it once told how to reproduce it:
suppose your screen is 1920 pixels wide (Full HD). suppose a patter contains high spatial bandwidths, i.e. high spatial resolutions like text.
obviously if a monitor is able to display say at a 60 Hz frame rate, then motion blur would be essentially absent if the font bitmap is moved 1 pixel per frame, or at least the motion blur would be constrained to 1 pixel of horizontal blur.
to traverse about 1920 pixels from the left side of the screen to the right at 1 pixel per frame (or 60 pixels per second) would take 32 SECONDS. Half a minute!
consider much faster velocities, say 3 seconds for a word to move from the left side of your screen to the right, thats motion blur such that a pixel is blurred the length of 10 pixels! Most people would not consider this very fast at all.
now take note of the DPI of the screen and print the same text at the same dimensions on paper, and hold it up close to your screen, and move it from left to right in about 3 seconds, while following it with your eye. You wont see motion blur on the real piece of paper, but you will on the digitally rendered text of same dimensions and velocity...
once you understand this phenomenon, you will understand in what sense the flicker bandwidth of human retina at rest with respect to a visual stimulus should not be confused for a sufficient framerate to accurately reproduce the perception of visual stimuli representing motion, unless the backlight is strobed at a very low duty cycle. but then flicker becomes visible again unless we bump the framerate up a notch again.
its extremely easy to reproduce, and I have not encountered anyone who fails to see it once told how to reproduce it:
suppose your screen is 1920 pixels wide (Full HD). suppose a patter contains high spatial bandwidths, i.e. high spatial resolutions like text.
obviously if a monitor is able to display say at a 60 Hz frame rate, then motion blur would be essentially absent if the font bitmap is moved 1 pixel per frame, or at least the motion blur would be constrained to 1 pixel of horizontal blur.
to traverse about 1920 pixels from the left side of the screen to the right at 1 pixel per frame (or 60 pixels per second) would take 32 SECONDS. Half a minute!
consider much faster velocities, say 3 seconds for a word to move from the left side of your screen to the right, thats motion blur such that a pixel is blurred the length of 10 pixels! Most people would not consider this very fast at all.
now take note of the DPI of the screen and print the same text at the same dimensions on paper, and hold it up close to your screen, and move it from left to right in about 3 seconds, while following it with your eye. You wont see motion blur on the real piece of paper, but you will on the digitally rendered text of same dimensions and velocity...
once you understand this phenomenon, you will understand in what sense the flicker bandwidth of human retina at rest with respect to a visual stimulus should not be confused for a sufficient framerate to accurately reproduce the perception of visual stimuli representing motion, unless the backlight is strobed at a very low duty cycle. but then flicker becomes visible again unless we bump the framerate up a notch again.