Ignoring all of the scientific evidence otherwise, there is not a chance you're actually parroting this nonsense without actually noticing a rather substantial difference when viewing something (say a movie) at 30fps versus 60+fps. It's literally night and day. Me and a few coworkers noticed the difference between 60 and 120 when upgrading phones recently, and that difference is much more nuanced than the difference between 30 and 60.