I vaguely remember seeing effects that exploit resizing algorithms, but I do not think that is what is going on here. I can view the image full size on a high

I vaguely remember seeing effects that exploit resizing algorithms, but I do not think that is what is going on here. I can view the image full size on a high resolution monitor, walk to the other side of the room, and see the text clearly. It is also visible if I squint.