The painful lessons of previous failed campaigns prevented the All Blacks from drawing any World Cup conclusions about their victory last night.
They have been here before; top dog in the Tri Nations all puffy chests and super secure, only to have their root pulled out at the World Cup a few months later.
That's what happened in 1999 when they plugged France in Wellington and then again in 2003 when they smoked Australia in July 2003 only to be dumped out of the World Cup by the very same opponents.
Graham Henry was understandably keen to say that nothing is carried forward in test football; the superiority of one night doesn't transfer to the next.
"I don't think it makes any difference," he said when asked if his side had just struck a major psychological blow. "It is great to win the Bledisloe Cup and we are delighted at the way we played. But looking ahead there have been far too many occasions in the past where that has not amounted to a result at the World Cup.