At what level in resolution (4k, 8k, etc) is something higher resolution than average human eyes max out at and why?
In: Biology
There are two different answers here depending on what you’re looking for. There’s pixel resolution and aliasing resolution. Cell phone screens and most tv’s now have dense enough pixels (colored dots) that at regular viewing distances you can’t make out individual pixels.
Pixel size isn’t the only thing your eye can see though. You actually have a much better ability to see aliasing (trying to represent a smooth curved object like a hanging powerline with pixels arranged in straight lines, leading to what appears as jagged lines). Because of this, image quality can still slightly improve by increasing resolution past 4k and likely 8k, but that depends on how far you sit from the screen.
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