It's surprising that 24 frames per second works!
It's surprising that 24 frames per second works!
The lowest frame rate considered smooth is 24 frames per second, not because the human eye can detect more than that. If it can't perceive more than 24 FPS, anything above would appear almost identical. The article you mentioned offers useful insights into this topic.
That sounds like a joke, doesn't it? It's similar to claiming the human eye can't detect more than seven colors. Completely nonsense.
I see 24 frames per second as the bare essential for fluid movement. It's not perfect, but it's better than nothing. For games, even this might feel choppy without advanced blur techniques, which only recently became feasible. Jumps in or drops in frame rate are likely to shatter the sense of immersion.
30fps is typically associated with TV production. Some animations run at 60fps, and many programs from the late 1980s to early 1990s—like soap operas and older shows such as Married... with Children or The Fresh Prince of Bel Air—are filmed that way. Most news channels use 60fps formats (interlaced, fields, or progressive scan). There are also shows shot at 24fps, like The Walking Dead, and classic sitcoms from the 1990s such as Seinfeld. It's not a strict rule, but these frame rates dominate television.
YouTube certainly contributed a lot to popularizing 60 frames per second in everyday use.