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> If the UI jitter on their phone was "so jarring", it's not because it's 60 Hz. It's because the phone's CPU isn't keeping up.

No, it's not. This isn't about dropped frames or micro-stutters caused by the CPU. It's about _motion clarity_.

You can follow the objects moving around on the screen much better, and the perceived motion is much smoother because there is literally twice the information hitting your eyes.

You can make a simple experiment — just change your current monitor to 30hz and move the mouse around.

Does it _feel_ different? Is the motion less smooth?

It's not because your computer is suddenly struggling to hit half of the frames it was hitting before; it's because you have less _motion information_ hitting your eyes (and the increased input lag; but that's a separate conversation).

60->120fps is less noticeable than 30->60fps; but for many, many people it is absolutely very clearly noticable.

> Like, nobody watches a video filmed at 60 fps and then watches their favorite TV show or a motion picture at 24 fps and says "the jitter was so jarring".

People absolutely complain about jitter in 24fps content on high-end displays with fast response times; it is especially noticeable in slow panning shots.

Google "oled 24fps stutter" to see people complaining about this.

It's literally why motion smoothing exists on TVs.



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