a Minecraft phenomenon that happens when you do weird minecraft version jumps in your world. what I did to make this phenomenon: I made a world in 1.13 and I clicked on another window in my computer so it can show the pause screen before the world generated. then I saved the world then got on this program that my friend made and made the "1.13" generated area witch is a small circle, "1.12 version" and saved the changed world and booted it up in a newer version of Minecraft and the "EXPOthermos" phenomenon occurs. world in screenshot will get download (no seed or it will generate a normal world)!
download for world soon... why it happens: when you make a 1.13 world and make the game think it is 1.12 it will get confused so it will pregen the world later? IDK. so it will make a crazy pregenerated world when you join.
