It is easy to imagine this being an opening paragraph in the history books for the WWIII chapter. Large chunks of the world economy are currently on ice and we haven't even seen what horrible economic policies governments are going to use to respond to this in the medium term. I bet that when the dust settles it'll be just like every other crisis where the situation is decidedly different and substantially worse.

The economy is both critical and far too complicated for anyone to understand exactly what is going on at the moment. We could be looking at anything from a temporary wobble that disappears in 6 months to a long-rolling 20 year catastrophe.