They have come thick and fast but a common thread is that the best way for the BOJ to jump-start the economy and affect inflation and inflationary expectations is through asset markets notably the stockmarket by the use of its own balance sheet.
When the market loses its momentum leaders, and you start seeing technical damage to individual stocks charts while the indices hang on by a thread, it is a sign of things to come.
The problem with hanging your dramatic thread on this is that it sinks any chance of genuine suspense - World War III did not start, so Neeson and Ford must have saved the day.