Here's a thread on why 24 is the best number of frames per second for everything but sports and gaming. It has to do with a fundamentally broken default assumption about the motion picture medium. 👇

Many of us weren't home for the holidays to help loved ones turn off motion smoothing. SlippySmoothSparkleMotion+ is still on by default (even as @RianJohnson and others keep up the good fight). There's a debate about why motion smoothing is so offensive. I'm here to settle it.

Before we get to the answer... No, the "soap opera effect" isn't a result of historical conditioning. 24 frames per second isn't better because "that's just what we're used to in movies." It's not about some arbitrary association.

A few movies who shall not be named have come out in recent years at 48 frames per second. The crowd response was universal hatred, thank god, but Hollywood will probably keep trying... I mean, it seems like MORE frames per second should be BETTER, right? More REALISTIC... right?

This is the broken assumption that most people have about movies: That the reproduction quality is supposed to be like reality—that the closer it gets to reality, the better. Under this assumption, 120fps would be best, as it's close to the resolvable limit of our eyes/brains.