From there to there takes no measurable time at all.
Take the shock resignation of John Key. Before the dust had settled and Nationalites could dry their eyes, there were rumours of scandal.
John Key stated family reasons, therefore there must be some other, darker reason for leaving the top job.
At the same time there were announcements of those seeking to fill his shoes.
Even as Bill English, dubbed by John Key as Sir Successor, stepped forward, he was being jostled by Jonathan Coleman and Judith Collins. Simultaneously, Paula Bennett was seeking caucus approval to join them.
While the punters were digesting this news, there was already speculation about John Key's earning power in the boardrooms of New Zealand or overseas, coming as he does from a Prime Ministerial, and therefore desirable background.
Chairman of the Board is his job for the asking, or offering. It was like seeing a fully-researched obituary appear seconds after a celebrity's death.
Light speed? Nah, faster than that.