[lolcatuser]

That's lame.

Ounces are an ambiguous unit, and most people don't use them for volume, they use them for weight.

[jefftk]

None of this is about volume. ChatGPT: "An ounce of gold weighs more than an ounce of feathers because they are measured using different systems of measurement. Gold is usually weighed using the troy system, which is different from the system used for measuring feathers."