I'm not sure this was anything new, even when the original tweet was posted. I remember back in around 2000 when someone put up a page on a random domain that simply said "Well done, you have reached the end of the internet. You can now go outside." It was early enough that people could still remember when one person could have visited most sites on the internet, but that was long enough ago that it was clearly impossible to do again. I remember reading that page when someone sent it to me and feeling a deep sense of relief at the idea, even though I knew it was impossible.