> "Black swan" is just a tautological term for new thing we've never seen before, but pretending to be a term for known thing that suddenly behaved differently.

> "Black swan" is just a tautological term for new thing we've never seen before, but pretending to be a term for known thing that suddenly behaved differently. Right. "Black swan" means "a new thing we've never seen before," but of course few people go around thinking "I will never encounter a new thing that I've never seen before."