That could swiftly undermine consumers' frail confidence.
Quite apart from issues of maritime safety, a minor incident could swiftly escalate into military conflict.
If the impression of disaster deepens, public support could swiftly "degrade", as NATO might put it.
Perhaps it is because he knows that his fortunes could swiftly reverse.
With Mr Erdogan in the job, it could swiftly slide towards authoritarianism.
The forced flight of these communities could swiftly double the total number of refugees to eight million.
Legislation could swiftly resolve the issue one way or the other, but the government is loth to cross the newspapers.
If the authorities succeed in keeping demonstrators dispersed and on the run, they could swiftly seize the upper hand.
Allowing domestic investors to hold overseas accounts, it is argued in Tokyo, could swiftly hollow out the Japanese financial system.
More nights like last night, however, when some seven protesters were allegedly shot, could swiftly change that.
If past downturns are a guide, that dip could swiftly accelerate, as companies recognize diminishing business opportunities and forgo purchases.
