But I think it would considerably change the Internet landscape. No more listening to the same exact song multiple times on Youtube or Spotify or whatever. No more downloading then deleting the same stuff over and over again. I think about it often, what a massive waste of bandwidth, I don't even know why. It's a lot of electricity used, I guess?
Even though I've got unlimited fiber, I'm looking for some sort of local "Internet cache" solution that would store everything so it would be re-downloaded from my home instead of across the ocean. Would be great for outages, too.