Does anyone else see a repeating pattern in the noise when zoomed out / squinting? I wonder if this means they used a tiled texture or a random noise function with bad randomness.
I don't quite see a repeating pattern on the image? I'm curious to see which area you observed that has this visual effect.
Perhaps the mind playing tricks
I also feel similar kind of noise in actual macbooks just like the one in the image. I wonder what about macbook's material property causes it.