Australia, but yes, this is fact. They weren't known outside Australia before 1697. And you're right about the term: a true "black swan" event is one that is s

Australia, but yes, this is fact. They weren't known outside Australia before 1697. And you're right about the term: a true "black swan" event is one that is so unpredictable from the prior history that it's just not included in models of the future. It's not just "rare".