Beulah has a husband?' I know. It's a miracle. There can't be more than two people on the planet who'd be willing to sleep with her, and here we are both in the same town.

The people are immensely likable— cheerful, extrovert, quick-witted, and unfailingly obliging. Their cities are safe and clean and nearly always built on water. They have a society that is prosperous, well ordered, and instinctively egalitarian. The food is excellent. The beer is cold. The sun nearly always shines. There is coffee on every corner. Life doesn't get much better than this.

So, if people didn’t settle down to take up farming, why then did they embark on this entirely new way of living? We have no idea – or actually, we have lots of ideas, but we don’t know if any of them are right. According to Felipe Fernández-Armesto, at least thirty-eight theories have been put forward to explain why people took to living in communities: that they were driven to it by climatic change, or by a wish to stay near their dead, or by a powerful desire to brew and drink beer, which could only be indulged by staying in one place.

It is a slightly arresting notion that if you were to pick yourself apart with tweezers, one atom at a time, you would produce a mound of fine atomic dust, none of which had ever been alive but all of which had once been you.

Perhaps it's my natural pessimism, but it seems that an awfully large part of travel these days is to see things while you still can.

I do find London exciting. Much as I hate to agree with that tedious old git Samuel Johnson, and despite the pompous imbecility of his famous remark about when a man is tired of London he is tired of life...I can't dispute it.

It was an especially wonderful time to be a noisy moron.