Demont said:
That is a myth, pretty much anyone can tell the difference between 23 and say... 50. If you are basing this on the fact that movies are filmed at 24 fps then read this:
http://www.100fps.com/how_many_frames_can_humans_see.htm
That's a good link, I'll have to bookmark that.
Actually, I was basing it on the fact that human beings see things by motion and/or contrast. Your eyes technically see all the frames, but it just blends it into about 23 frames per second. If it's any action higher than that, you will see it, but you may not register it.
Talking about in-game, you are not going to be walking along and have a single frame out of 100 be completely different from all the rest, they are all going to flow from one frame to the next fairly evenly. Even a flash of light for a split second will last a lot more than one frame in a game.
Outside of a game, yeah, it is possible, like your link says, to recognize a 1/300second flash of light in a completely dark room, but out, in an open brightly-lit world, a dramatic change in lighting for 1/300th of a second doesn't matter. Hell, all the lights in your house produce a burst of light 60 times a second, and your eyes blend that into constant light. Staring at a light bulb, you can't see it releasing bursts of light.
As a neat trick, wave your hand in front of your monitor really quickly, your hand will block some of the bursts of light, and not others, and it will make your hand look like it's in front of a strobe light (which, it technically is). This will create noticeable "black" frames, and shows the update of the monitor. If your really good at it, you will find that you can see things on the monitor through your hand.. ie. your hand will look translucent, that's your brain blending the images. It's better in a dark room, and at different refresh rates (60hz works best
)