Some quick ideas:Existential JackpotExistential BoonSurprising Societal BoonUnanticipated Societal WindfallMajor Unexpected GainsUnexpected SupergainsWhite Swan Event [I just checked, that already has a different meaning.]
I think I like “existential boon” the most, though “boon” does not convey nearly the same strength of effect as catastrophe.
Some quick ideas:
Existential Jackpot
Existential Boon
Surprising Societal Boon
Unanticipated Societal Windfall
Major Unexpected Gains
Unexpected Supergains
White Swan Event [I just checked, that already has a different meaning.]
I think I like “existential boon” the most, though “boon” does not convey nearly the same strength of effect as catastrophe.