9/11 changed nothing. Obviously for the victims, and their families, it changed everything, for ever. But in geopolitical terms it was not a transformative event. The kaleidoscope was not shaken. The pieces never were in flux.
We're not supposed to say that, of course. The tenth anniversary of that appalling day requires appropriate commemoration, and, sadly, fan-fare. As such, it cannot simply be a footnote. It must be nothing less than the frame upon which the 21st century rests.
But the historic vantage point of September 11 is illusory. The fall of the twin towers were nowhere near comparable to the fall of the Berlin Wall. The US invasion of Afghanistan was itself not even as significant as the invasion conducted by the Soviet Union two decades earlier. Bin Laden's killing will not outlast the impact and resonance of the death of figures such as Che Guvera, Steve Biko or Mohamed Bouazizi.
9/11 was the day that was supposed to have re-shaped the United States, transformed the Middle East and irrevocably altered our world. It did none of those things.
In the US we were promised, or threatened with, the dawning of a neo-conservative century. White Anglo-Saxon America would retreat behind a wall of steel, venturing forth occasionally to subjugate the hapless natives with another brutal lesson in shock and awe.
In fact, the neo-conservative century lasted another three years. Then hurricane Katrina tore through New Orleans, followed shortly after by the banking crash, and White Anglo-Saxon America realized you just can't build your walls high enough. Republican war hero John McCain was defeated by a black community activist named Hussein Obama, and Dick Cheney retired to begin work on his memoir In My Time.
Those who predicted change in the Middle East proved more prescient. Just. The toppling of Saddam was supposed to light a beacon of freedom that would illuminate the region. Until we stumbled across the descent into barbarism that was Abu Ghraib.
At the same time, Bush and Blair's reckless adventurism was supposed to have locked west and east into a new dance of death. Then the states of the Arab League gave NATO their blessing to impose a no-fly zone on Colonel Gaddafi, and cheering crowds in Tripoli's Green square celebrated his overthrow by waving the French tricolor.
Yes we have had our glimpse of the Arab spring. But not because of the actions of Khalid Mohammed or Blackwater Security. None of the freedom movements in Tunisia or Egypt or Libya were born on that clear, crisp New York morning.
And whilst much has changed, much has stayed the same. The Palestinians are still without a homeland; the Israelis without security in their own. The richest area of our planet is still ruled by faded monarchies and religious zealots and petty dictators. Their world, and the world of their people, hasn't turned.
Nor, in truth, has ours. The war on terror has touched, but not shaken us. Al-Qaeda have had less lasting impact in Britain than did the IRA, or ETA in Spain, or the Red Brigade in Italy. The fear they instil amongst those who still remember the Stasi is minimal. In Scandinavia, they watch for demons closer to home.
Of course there are tensions. Undercurrents. If you are a Muslim, suspicion and fear are companions. But the fact is those tensions have always been present. Thirty years ago, the signs read: "No dogs, no blacks, no Irish". Today, Muslims and asylum seekers would take their place. Except today, even after 9/11, such signs would be illegal.
Despite the apocalyptic premonitions, we do not live in a constant stage of siege. There are no bomb detectors at our tube stations, or five hour check-ins for our flights. There is a new terrorist hot-line, but hardly any of us have ever called it. Attempts to extend detention without trial have been, and gone.
Inevitably there have been those who have attempted to build a legacy out of the horrors of the previous decade. Nick Griffin was one, until last week, when the bailiffs arrived to repossess his Skoda. His party will soon follow.
Another was Stephen Lennon of the EDL, but his members can no longer march, and he can't walk the streets of his own city unless he is in disguise. Islam4UK never did make it down to Wootton Bassett, or to Luton, where the local Muslim community leaders informed them there presence wasn't welcome.
None of this is to diminish the enormity of what happened ten years ago this September. Or belittle the suffering of those who were directly involved, or touched by its aftermath.
But the neocons have gone. The Middle East and the west are not engaged in a new holy war. Repression and authoritarianism have not cast a long shadow over our society.
9/11 was a day none of us will ever forget. But it has not shaped us. The kaleidoscope still sits, and waits.