This was never going to be easy
In life it's better to be neither an optimist or a pessimist but a realist. London's path to the Olympic Games was never going to be an untroubled one. But the shock of the lawlessness and criminality of the past few days means the hurdles that have to be overcome are even greater.
I've sat through enough business continuity sessions to know that nothing is risk-free.
And it's worth a little perspective here. Of the cities bidding for these Games against London, all have sadly had either terrorism or civil disturbances in recent years. All of them are teeming with millions of individuals in the sometimes chaotic urban life of the 21st century.
London never underestimated that in its bid.
Indeed, it won because it was radical and it embraced the diversity of the city - the place where hundreds of languages are spoken and where almost every team from around the world will have "home" support.
Communities have fought back after the riots brought havoc. Picture: Getty Images.
It chose to site the Games not in the leafy suburbs but in the East End and in some of the poorest boroughs in England.
You then add in what my colleague David Bond referred to yesterday about London being at the centre of media attention in the next year - and what I've always called the most unforgiving of global spotlights.
Everything - from transport, security and criminal acts through to pomp, ceremony and sport - will be covered obsessively by the thousands of journalists deployed on this story. It is simply impossible to come through this without a blemish.
This week's events have been horrific. But for those of us who love this city - and I unashamedly do - there's inspiration to be found too.
We see the strength of communities who are determined not to be cowed, and the countless individuals who make a difference in getting things back on track.
It also puts into perspective the conversations I've had with leaders in Newham, Hackney and the other Olympic boroughs. The political debate is about whether the £9.3bn budget is justified and whether it could have been better spent on supporting their areas in other ways.
But the Olympics are now happening and they see it as their once-in-a-lifetime opportunity to try to secure a legacy in a part of London that has often been marginalised.
The tougher-minded people in the East End have always known this could go either way. The showcase could be for better or for worse. This is not going to be some sugar-coated Disneyland experience.
But I've seen enough of the spirit of those communities to know that everything is still possible, and the key is to mobilise the majority over the criminal minority.
Most of the people of this city want to welcome the world in a year's time. The world in turn looks to London as a great historical city and a global capital capable of staging a wonderful Games.
Being a realist means I know we can't just wish that the two come effortlessly together, and this week has reinforced the risks. But the opportunities and the prizes remain there too.