I always wonder why with everyone having a smartphone, iPhone or some other Giga pixel camera and exorcists claiming all sort of physical events and objects moving across the room there are not convincing videos of these events.
Why not film something levitating or flying across the room from different angles and publish it on the Internet? Not for amusing people but for sober reflection. Not everyone would believe, sure, but plenty of people would.
Are these events which they claim to see with their eyes, invisible to an iPhone camera?
Most people today don't believe in the supernatural. Why not demonstrate it?
Perhaps you have a point, but it seems to me that it could be explained by reason of the events being too unexpected, such that when they begin, the person who would be making the video is stunned for just a moment, long enough to not have the recording device in position yet, and when they finally focus the camera or whatever, the event is over.
It would be far more likely to get Internet videos of a book lying on the floor, and someone saying, "I swear, this book just came flying across the room a minute ago." Or else you might see a video of someone trying to re-enact what they had seen happen when they had not been READY to take the picture.
I have some experience in ACTION PHOTOGRAPHY, and it is essentially a matter of the photographer ANTICIPATING the scene that makes for great action shots.
It always comes down to that point. There can be a rare lucky shot that falls into your lap, but that's not your bread and butter. You have to be prepared in ADVANCE for consistently good action shots, that is, if you want to stay in business. And being consistently ready BEFORE the action happens is the mark of a great photographer.
Objects flying across the room are probably not something that you can know beforehand what time that it will occur or on what day of the year.