Most of the forums in TR concern work-related knowledge. This one is for things outside ordinary work concerns. It used to be called Water Cooler because that, traditionally, is where people at work discuss non-work things. An older name for such knowledge exchange is scuttlebutt, i.e. a barrel with a hole cut in it for water to be taken out for drinking, originally, I think, on a ship, before ships had water tanks and taps.