Ever notice how we do this with everything, not just memes? We take a simple thing, a song or a joke, and just keep using it until it means ten other things. It's like our brains love shortcuts, so we bend old stuff to fit new stuff because it's easier than making something from scratch. You see it at work, in friend groups, everywhere. It's not really about running out of ideas, it's about people being lazy and liking what they already know.