The feed you just closed
Every clip on it is finished. Someone filmed it, watched it back, cut the dull seconds, chose the flattering frame, and posted the survivor. By the time it reaches you, the moment it shows is hours old — often years. You can pause it, rewind it, play it at double speed, precisely because it is not happening. It happened.
And it plays identically whether you watch or not. Your attention changes nothing on the other side of a recording. A feed is a museum with good lighting: everything in it is already over.