This was a Blackswan event, by definition unpredictable. Sure, some people raised it before the event, but so have been major earth quakes, tsunami's, literally

This was a Blackswan event, by definition unpredictable. Sure, some people raised it before the event, but so have been major earth quakes, tsunami's, literally events out of the bible. I think a better thought is how to become Anti-fragile (checkout the book by Nicholas Taleb)