Friday 12th November, 2010. It's been a long day. My presentation went well enough, but it's a tough gig telling the marketing managers of some of the world's most celebrated consulting firms that their marketing isn’t working, especially when you're a slightly airy Englishman and they're a bunch of hard-nosed New Yorkers who've been in the business a lot longer than you. There were nods of agreement - it wasn't, frankly, that contentious, what I was saying - but there was hostility, too. I guess I knew there would be.