Will London keep moving during the Games?
It was a pretty routine Monday morning on the tube network. My District Line service was slightly delayed by a person ill on the train ahead.
There were longer delays on the Bakerloo Line because of a signal failure at Waterloo, while services in East London were held up by a fire check near Liverpool Street.
But like hundreds of thousands of other Londoners, I made it to a meeting and then to work on time - just a regular commute on a regular day.
The reason for paying closer attention than usual was that the meeting was about transport in London during Olympic Games time - and it's a theme being put in the spotlight by the Transport Commissioner Peter Hendy today in a meeting with London Assembly members and representatives of the 33 boroughs.
This is a case where I'd recommend having a browse through the wealth of material starting to appear on websites.
Mr Hendy has launched www.tfl.gov.uk/2012 as a one-stop shop where people can find Olympic transport information; and it supplements (does that make it a two-stop shop?) the useful website for businesses that sits with Locog.
It's here you can find some interesting predictions - including waits of more than an hour for some tube trains at times of peak demand.
For me, there were two big themes emerging from the meeting. First, much of the reporting in the past has focused on stories about the Olympic Route Network on the roads - and then separately the pressures on buses, tubes and trains.
But as a statement of the blindingly obvious, all the transport systems are intertwined when it comes to keeping London moving.
London's transport system could be even more congested at certain times during the Games. Picture: Getty
So there are messages to people about (a) please don't drive - these are public transport Games; but (b) regular use of the roads and tubes has to drop too in order to prioritise the athletes and crowds heading to venues.
Then the second conundrum is about how non-Olympic businesses get their staff to work, their goods delivered and their customers served properly.
To take a BBC example: how do we get everyone to the Proms on time when there's an Olympic Route Network just east of the Royal Albert Hall in Park Lane and when Hyde Park has a Live Site accommodating 50,000 and a number of Olympic events?
If you're a shop in central London, what time will you get your deliveries - and can you get some of them ahead of Games-time and beat the road closures?
These kind of questions generated a sparky debate when I got back to the office.
Some people think this is potentially Millennium Bug 2: actually, London will manage perfectly well and the threat of an hour-long wait for a tube means it won't happen in practice.
Others, who've listened to the murmurings of Olympic experts, believe transport remains a potential Achilles Heel in 2012.
For myself, I'm not going to make a prediction - because the evidence points in both directions.
London has a decent system most of the time, and the planning that's going into next year is impressive in its range and depth.
On the other hand, most Olympic cities struggle in some way with transport; and the complexity of London, combined with some narrow roads and the chance of random signal failures or security alerts, means you wouldn't stake your house on there being no problems.
But you're welcome to express your views here as ever. And I should just conclude by apologising for my previous post being closed for comments too rapidly, because the point of this blog is to allow debate to continue and I hope you'll take advantage of that.