I was talking to my friend in school today, and he told me about infiniwire(he is friends with the makers of this video, he is really good at redstone). Basically, you can send an infinite amount of information, through 1 redstone wire. Only 1. Well, how is this possible? Delay. Watch this video.
We could make cities with Times Square! LCD screens in cities, and relay public messages from city to city, within a couple of minutes!(tick delay + distance) We could communicate information anywhere on the map, we would just need a lot of redstone. Infinite information(with binary decoders of course). We could definitely do a lot with this in the future, most likely in age 4. What do you guys think?(this would be for large LCD screens, not personal messages)