Comment by IAmBroom
7 days ago
If you've never seen the optical illusion, it is stunning.
You stare at the center (unmoving) dot in a moving field. The field remains; the dot fades away - and POPS back the second your eyes move.
Your unconscious, constant "jiggling" of your eyes is called saccadal movement. Without it, only moving things would be visible - which is true for frogs.
That reminds me of the one 'trick' I was able to play on myself with a windshield mounted GPS. Placing it just so in the overlapping vision that it effectively becomes transparent from the brain's compositing of the two images.