> I want to be pedantic and point out that water as a substance is not the same thing as water as an ingredient in another substance. It is not water, it is so

> I want to be pedantic and point out that water as a substance is not the same thing as water as an ingredient in another substance. It is not water, it is something else which contains water. It's possible to take that pedantry a step too far. Is seawater not water because it contains a lot of salt, other minerals, fish poo, and whatnot? > “Water” cooling is most often literally distilled water or possibly distilled water with a fungicide. This is not what is used in datacenters. I've worked with datacenter equipment cooled by (AFAIK non-distilled) water-glycol, so, well, it does exist and is used.