This latest humiliation has exposed Ireland's glaring deficiencies at the highest level, writes Eamonn SweeneyAbject. Humiliating. Dire. At one stage it looked as though we were trying to honour the memory of the late great Mervyn Davies by producing a repeat of our 34-9 defeat by the Welsh team he captained back in 1976.
Though perhaps a better analogy would be with our 32-4 defeat by Wales in 1975, a loss which brought down the curtain on one of Ireland's more successful rugby eras and set the stage for a number of fallow years.
Because, make no mistake about it, Ireland are in big trouble.
By the end of this match we looked like a bedraggled touring team playing the final game of a gruelling schedule. England are not great but they are unmistakably headed in the right direction.
And Ireland? Gordon D'Arcy, Jamie Heaslip and Tomas O'Leary showed further evidence of Fernando Torres-style declines in form and confidence, Sean O'Brien was ineffective and Stephen Ferris outshone by Tom Croft.
Worst of all, our scrum was pulverised about as completely as is possible in international rugby, England marching us around at will as though they were the Duke of York and Ireland were his men.
This is a team in unmistakable decline.
Take away the big win over Australia in the World Cup final, a win which is starting to look like a bit of a fluke, and we've been badly off the pace in recent years. Since our Grand Slam year in 2009 we've lost six games in the Six Nations.
A team which once set its sight on challenging the Southern Hemisphere giants has now slipped behind both Wales and England.
Yet we've continued to delude ourselves about our real standing at international level.
The apparent disrespect shown by both Ferris and Rob Kearney towards England last week probably has more to do with media hubris than the attitude of the players themselves. But it indicated our inability to see ourselves as we really are.
The Welsh victory in the Aviva was waved away with reference to the controversial nature of the late match-winning penalty from the visitors. But this was the third time in a row we've been turned over by Wales.
Yesterday Wales won their third Grand Slam in eight years. It has taken the entire history of Irish rugby for us to amass a mere two. Yet we have been dismissive of both Wales and Warren Gatland in recent years, imagining ourselves as operating from a position of superiority.
Our draw with France in Paris has been put into perspective by the subsequent French losses to England and Wales. We're going nowhere.
As the towel was thrown in at Twickenham the thought occurred that it was performances like this which cost Eddie O'Sullivan his job. Declan Kidney will hold on, aided by the fervour which will accompany the exploits of our provinces in the Heineken Cup. But boasts about our strength in that competition will ring pretty hollow after this sorry display.
International rugby is what matters. It's where you find out how good you really are.