Especially when the posting is just a couple of links to fun videos? The videos in this case represent a trend I've been following, which replicates computer effects with human labor. Call it a lashback to technology's capacity to dehumanize. Call it playful. Call it a bucket-load of work for the filmmakers and performers.
Here's a ping pong match, done Matrix style, but without CGI effects. Watch to the end; it's worth it.
Here's a human Space Invaders game. I wouldn't watch the whole thing; there lies madness.
Tip of the hat to Crazy Larry, my tipster for all things that have probably been around forever, but for which I am not hip to the scene.