The best thing about life is that it's fleeting. The good things, the bad things, and all the mediocrity in between, it's going to end one day. Nothing last forever. Isn't that freeing? Some of the art that I love the most is ephemeral. Live theater being a prime example. You'll never get the same experience twice. That room on that day. It's special. But most art is fleeting, when you think about it. Paintings will disintegrate unless meticulously cared for. Film negatives will dissolve back into the ether. Music recordings will get lost to time.
One of the nice things about memes is that they know they're ephemeral. Most of them won't stick in your consciousness for more than a few seconds, and their pixels will be lost to the annals one day. Yee haw. So enjoy a few here, while they last. You never know when they're gonna go!