It is hard to predict the next big event, since they are once in a lifetime kind of events
The most important economic events of the future—things that will move the needle the most—are things that history gives us little to no guide about. They will be unprecedented events. Their unprecedented nature means we won’t be prepared for them, which is part of what makes them so impactful. This is true for both scary events like recessions and wars, and great events like innovation. (Location 1434)