Minecraft chunk error in real life

Minecraft's defiantly unrealistic style notwithstanding, players appreciate the game's internal consistency and get frustrated at certain failures of verisimilitude. Chunk errors, for example, are squared-off seams in the world caused by glitches in the landscape-generation algorithm. Right out of the annals of reality is unrealistic comes Roraima Mountain, a pleasing reminder that you are living in a simulation and Notch is God. [Speculative Nonfiction. Thanks, Michael!]