Many years ago I deleted all posts/comments that were listed under my user profile, but hundreds of them still show up when I use a search engine. I even tried going through all of those search results and deleting the comments directly from where they were posted. Doing that makes it look like the comments are being removed; you can even refresh the page and confirm that you don't see them anymore, but after some time they always come back. I've done multiple cycles of trying to delete these comments and they never actually get removed.
Reddit is run by scumbags.
Ok, let's try to narrow this down so our exchanges aren't vague. To me going from propellers to jet engines would have been "revolutionary", but to you it may have just been incrementally expanding on the concept of a wing that keeps aircraft afloat.
So for clarity, I'm not suggesting a complete replacement to HTTP. I don't envision a world where the web as we know gets fully "replaced". But, I do think that it has out lived its purpose and ultimately we should be seeking a better protocol for information exchange. Or, in other words, I don't think formulating a solution that can provide privacy, integrity, etc should be restricted to being built on HTTP just because that is what we essentially consider the web to be today.