I think in retrospect we will see SARS, MERS, H1N1 as precursors to the virus, like the 1993 WTC bombing & USS Cole attacks prefigured 9/11.
1) SF earthquakes giving a preview of “The Big One”
2) Microsoft Tay giving a preview of hostile AI
3) Bear Stearns giving a preview of Lehman Brothers (this was arguably more than a black cygnet, but life did go on)
It’s an interesting framework.