You literally just proved my point. Good grief. Think about what you just wrote. AA has to do with PPI, as I stated. DUH!!!!I'm not sure you know how resolution, pixel density and monitor size works. You have never seen a 16K display before and probably not even a 8K. If you think there isn't a difference on having 81.59 PPI compared to 163.18 on the same size display you really need to go see an eye doctor. Aliasing diminishes with higher pixel density. 8K on 27" is 326.36 PPI and that's when diminishing returns really starts, depending on size of the monitor and the distance to it (VR would need higher PPI).
A 16K resolution on a 27" monitor would look better than any software based AA we have right now.