I just found a very small instance Of a repeating Minecraft seed.
in each one of these pictures there are two caves and in each picture they're the same. Just one above the other. I think this is so cool though despite it being a small instance and the reason how these types of things can happen is because Minecraft seeds aren't technically random. And if you can tell too, it's not all the case. It's just a few of them but it looks so cool! Im going to call this phenomenon Minor Cave Repetition (MCR for short)
(Please note not everything is repeating like the lava or the ores or even some other caves around it)













