In the past the Irish have always faded well before the end. Not last weekend. The team coached by Kiwi Joe Schmidt never faded. They kept the pressure on the All Blacks to the final whistle.
It was wonderful to see. Wonderful for rugby.
Steve Hansen said before embarking on this tour that the coaches were treating it as a dummy run for next year's World Cup. To win the Cup they need to beat two or three teams of top quality on their day and England and Ireland offered that challenge in their own ways. But even the All Black coaches probably did not expect the quality they got.
After the Dublin defeat, Hansen made it known they were trying different tactics on this tour which they have yet to perfect. Most obviously, they are tying to build a game around two pivotal attacking talents in Beauden Barrett and Damian McKenzie. The pair produced a sublime try to McKenzie against England but otherwise the double act is still a work in progress.
The coaches must also want to make more use of Richie Mo'unga's fine instincts at first five. They are almost spoiled for riches.
The depth of excellence and resilience Hansen has built into his squad is so extensive that Barrett's new goal kicking prowess is going almost unremarked. At the beginning of the season it was the one weakness in his game. Now it is hard to recall when he last missed one, and he has acquired a dropkick too.
It is just as well this team has discovered how fast others are catching up on them. England, Ireland and South Africa have given the coaches much to ponder over the summer. All are playing now at the pace and standard Hansen's All Blacks have set since he took over in 2012.
Hansen hopes to take them to a second World Cup but it is now clear that to do so he will have to take them to a yet higher gear. It is a mouth watering prospect.