60 is definitely playable, but its not ideal

[MikeRox]

darkknightkryta said:
22fps is what the human eye sees as natural motion. The two extra frames for film (24fps) are added in in case a frame is dropped during broadcast. The further above that you go the more the game looks like it's put on fast forward (People with VHS should remember what this looks like vividly). 60fps for gaming is a nice sweet spot because you're not that far ahead of natural motion and not too far ahead for it too look like it's getting sped up. This is more useful for gameplay especially when you need it for reaction time. On the flip side; your eyes will adjust to 60 fps and it will eventually seem like 30fps anyways so it doesn't really matter. Though going back to 30fps after will look as weird as something in 60 until your eyes re-adjust.

Got any sources to support this point? I never used to be able to distinguish frame rates until Dreamcast and  since it clicked what the difference was, I can now tell 30fps and 60fps instantly. Have been able to since wondering why Metropolis Street Racer and Sonic Adventure 1 had a double vision effect when your view was turning, but then games like F355 challenge and Sonic Adventure 2, the movement was flawless.

I really wish 30fps did look like 60fps, but it just doesn't. I'd also disagree with "fast forward" as the movement is still happening at the right speed. Does life look like it's in fastforward to you? that has infinite frame rate refresh ;)