It will be a year of disruption and we had better get used to it.
But it is easy to say that. What sort of disruption? Where should be look? Should we worry?
Start with economics, because for all its uncertainties it does follow certain patterns, whereas politics does not.
And start with where we are now: a solidly growing world economy and booming share markets, but a sense of foreboding nevertheless.
For people in Britain, the sense of foreboding has been sharpened by concerns about