That's crazy. I feel dumb for initial thinking it was somehow doing eye tracking to achieve this, despite having no such hardware installed.

I would be curious to see a similar thing that includes flashing. Anecdotally, my peripheral vision seems to be highly sensitive to flashing/strobing even if it is evidently poor at seeing fine details. Make me think compression in the time domain (e.g. reducing frame rate) will be less effective. But I wonder if the flashing would "wake up" the peripheral vision to changes it can't normally detect.

Not sure what the random jab at Linus is about.