This is true, the simple truth is that there is a distance from a display that if you are at and even if you squint it will be impossible for you to make out the individual pixels. aka screen door effect. As long as you can't see that it's also impossible to see anything that the screen door effect artifact will cause. What you would notice then though is that entire image will just not seem as sharp as it maybe could be (assumimg  you hsve seen sharper) thats the generalized effect of the screen door thingy. 

This whole thing becomes less and less the higher a rez you are at. 

This all doesmt just quite apply to PC gamers becasue they are usually sitting between 3-4ft from their screens.  So a higher rez is always better in those situations. 

As for the motion blur thing.... I wouldn't be surprised in the least if it's one of the many ways these devs do tricks. They probably have systems in place where when using it everything it's applied to is rendered  at a lower setting or something. Just like this thing they do with polygons today (no not tesselation) some other tech where even though the CPU sends the blueprint for what should be drawn in a frame, it also sends instructions so the GPU only draws the geometry that are front facing or that the player will be able to see. 

Yh that makes sense. But I think the thing is that the PS4pro using its 50% 4kc results in a better I than just rendering at 1440p then upscaling to 4k. And better results than down sampling from that to 1080p Cause if you think of it. 50% 4kc still has the PS4pro rendering around 500k more pixels than 1440p. I could be wrong tho... doing calculations in my head as I type. 

you see exactly what you would see on a PS4 pro with 50% checkerboard.  
i was referencing the general concept of VR foveated rendering, but the difference is detail here is much less pronounced than there.

right, although to be clear anything but 50% is no longer a "checkerboard", it is a checkerboard with some more squares filled in.
my idea was whether in some 1st person/ driving type games, whether it would be most advantages to concentrate those filled squares towards the center.
or even to include/ remove pixes (possibly below 50%) in areas that are LESS drawing of attention (e.g. the area beneath swinging foreground weapon).

Scorpio was definitely in my mind with this, because while it's possible it may have the power to do full 4K, it probably won't have any left.
So assuming devs would be attracted to using power for other things like lighting, FX, FPS, checkerboard may very well be attractive to use.
In some cases they may want to use 50% checkerboard, but if there is an intermediate step, that may be preferable... That's what I was trying to get at.

Yeah, makes sense.  It think from these screenshots that's the biggest differential adding blurryness, rather than the lack of native 4k resolution.  It's not going to compete with 6GB+ PC GPUs on texture details.

The geometry edge detail acutally looks really sharp, so if this is the result with checkerboarding it's very very good.

Ar you serious? you are saying its not close? why dont you give us a porcentage of how close you think it is?

CUz to the majority of people they would say and they have said that its pretty close, close enoughf to spend only $400 on it.

Lol ive been there.... 

I've given up on it though, just accepted that some purists will always find a way to knock down consoles. I mean if you read some of the posts here you would think the difference in question is akin to comparing 720p to 4k when in truth is more like comparing something higher than 1440p to 4k. 

I'm gonna probably end up with a 55-65" 4k HDR Tv this November. I'll be sitting around 7ft away from it when gaming... I would really like to see if  I can see these differences that they are talking about. I'm aware they are there, but I want to see how obviously inferior the image will be. Cause 1080p looked perfectly fine to me just 3 or so weeks ago before i sold my PS4. 

Oh Im sure the diferences are there, but Im pretty sure that I wont want to spend $1000 or more for them.

Im on the same boat as you, waiting for black friday to get a 4k tv and geting a neo as well.

A 4K TV is also on my wishlist for xmas. Price will be around 1000-1500€. I will hook up my PC on it and play games with an xbox controller.

What!!? Prices are inflated in EU right? Cuz Ive seen 60" samsung for $1000 here, maybe thinking that by black friday I can shave a cuple of hundred on it. Althought I have no Idea what the HDR functions are, it dint clarify on the add. I know I should be looking for 10bit colour, I know nothing else.

Perhaps, chroma subsampled you only need 15 bits per pixel instead of 30 for 10 bit color. If memory bandwidth is a bottleneck, saving half of it could help. All the pixels still need to be rendered though, and in a checkerboard pattern you don't want to lose extra color information as well. You'll end up with 1/2 res and 1/8th color info.
I guess you can use 4:2:2 subsampling 20 bits per pixel which with checkerboard ends up as 4:2:0 15 bits per pixel. Still just a memory saver, 9.88 MB for the checkerboard image in 4:2:2, 14.8 MB for the final 4K image in 4:2:0. Perhaps useful if you need to fit it in an esram buffer.