system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: What is it that makes whiteboard markers eraseable when all other markers are permanent (when used on whiteboards)?
gpt
Dry erase markers use an oil that doesn't stick and dries in a "film", while everything else uses an ink that isn't designed to dry to be erased (although you can use the oil of dry erase markers to erase permanent marker off a whiteboard)