>>22117019That's just simple quantum mechanics used by physicists in places like CERN. Dont think of it so much as an illusion as much as it's a vibratory realm, things existing at higher frequencies could remain invisible to us in it if that makes sense to you. That's what "spirits" do.
>Flicker fusion threshold: The maximum frequency at which the eye can fuse light flashes increases with illumination intensity. For rod-mediated vision, the maximum is about 15 Hz, and for cone-mediated vision, it's about 60 Hz. Eye movements: Eye movements are modulated by oscillations at 3 Hz and 10 Hz. These oscillations are linked when both eyes and fingers move together to track a target.
>Spatial frequency: The visual periphery contains low-acuity vision and is sensitive to different parts of the spatial-frequency spectrum. Objects with very low or very high spatial frequencies are less visible. >Contrast threshold: Contrast thresholds can be affected by frequency. For example, people with visual snow syndrome have an increased contrast threshold at 15 Hz. >Alpha peak frequency: Alpha peak frequency affects visual performance. 