When your math professor suddenly flips the coordinate system and you're left questioning reality itself! In Minecraft, height is measured on the Y-axis (up/down), but in calculus, the Z-axis typically represents height while Y is horizontal. No wonder Minecraft players entering calculus feel like they've been teleported to an alternate dimension where gravity works sideways. Their brain is basically experiencing a stack overflow error trying to process "up = Z" instead of "up = Y". Next thing you know, they'll be trying to mine for diamonds along the wrong axis!