I don't need and tech specs or theories because i can see with my own eyes a very large difference between 55 fps and 100 fps. I also see a large difference between 85hz refresh rate and 100hz refresh rate.

One thing thats very important to remember is that your visible fps will never exceed your refresh rate. You can't see 100 fps with a 60 hz refresh rate. Its just not possible.

The whole motion blur thing is also really important. In motion photography the blur conects the range of movement from one frame to the next. Rendered graphics don't have that blur so if in one frame the subject is on the left side of the screen and the next frame its at the center of the screen theres going to be quite a large jump in it's motion. As you go up in framerate for rendered graphics i've noticed that a moving image starts to look more and more like a solid object moving across your screen. That is to say that more of its distance travelled over time is accounted for visually.

I cant see a difference in the FPS at all, but I can see a difference between 60hz and 72hz. Anything above 72hz looks the same though.

So I dont care if my game is 24fps, or 240fps, as long as its above 23 and if my cas latencys can make the game go from 14 to 24, thats the difference between needing an upgrade and not needing an upgrade or, downgrading the resolution for that matter (in the game).