Good to know! (That's why I included the qualifier "in many jurisdictions".)
Here, also, Creative Commons' "CC0" declaration is a friend of authors who want to be universally open. CC0 was designed with multiple fallback clauses, intended to also handle copyright systems like those of France or Germany.
CC0 doesn't even necessarily require that you distribute the license text or copyright notice. You can use it as you'd use a public domain work - do anything with it.
Here, also, Creative Commons' "CC0" declaration is a friend of authors who want to be universally open. CC0 was designed with multiple fallback clauses, intended to also handle copyright systems like those of France or Germany.