Nobody knows anything. I deal with people in all walks of life, some of whom should have some idea of what they're doing. And they're all clueless. It's astonishing that any bridges stay up, or that planes don't constantly plummet from the sky. It's heartening, in a strange way.

In Britain, eponymous lifestyle branding as we know it started in the late 1960s, with two fascinating families - the Conrans and the Ashleys - who in increasingly brilliant settings and catalogues sold rather different visions of what the new ideal upper-middle-y life looked like.

In London - and forget those extra public pressures on politicians - the lovely old Sloane world of manor houses simply hasn't cut it since Big Bang in 1986, the point at which Mrs. Thatcher really started to achieve her ambition to make this country more like America - its ambition, economy, it's very tangible measures of success.

Girls like Diana Spencer, armed with nothing more than a guinea-pig-rearing certificate, proud to say in that old Sloane way that she was 'as thick as two short planks,' became the exception as girls from Benenden and Downe House started to fast-track towards the City and law, consultancy, media and the arts.

Across the Atlantic, commercial therapy of all kinds provides so many more comfortable outlets for people when they are under pressure. The English tradition is to get a grip, whereas the American version is to get in touch with your feelings, to say: 'I'm a good person. Isn't it terrible when bad things happen to people like me?'

Marmite - like that other little black-jar job, Bovril - is so much a Mark 1 staple-of-Empire brand, so much part of the Edwardian world of enamel advertising signs, the history of grin-and-bear-it industrial food.

When you get inside a literary novel you feel that the author, more often than not, just doesn't know enough about things. They haven't been around enough - novelists never go anywhere. Once I discovered true books about real things - books like 'How To Run a Company' - I stopped reading novels.