I have managed to get out of the centre of London by getting a taxi south to a friend's house.
Some transport is starting to run again according to the news but most of the centre is closed down. I'm south of the river and it was impossible to get to the north to any stations likely to be running services that could get me anywhere near home.
I think I'll stay here for a while and try to make my way home this evening or tomorrow. For anyone who knows me or my family, I am fine and, to the best of my knowledge, none of my family or friends were in London today.
As I left, the centre of London seemed very quiet. Office workers seem to have taken heed of the advice given by the Police to stay at work and to stagger their journeys home over the afternoon / evening. Most of the people I saw trying to get home were clearly not locals. Were it not for the constant wailing of police sirens it could easily have been any quiet Sunday afternoons.
My thoughts, sympathies and condolences go out to anyone for whom these events are more than the mere temporary inconvenience they are to me. By tomorrow evening my life will be back to normal. For others the repercussions will be much more serious.
However, the UK has been subject to terrorist attack of this sort of seriousness for the last 30 years. I doubt very much whether it will change many peoples lives a great deal and I feel the perpetrator will probably fall well short of their objectives.