"I had a dream last night..." It was a glorious summer's day, beautifully hot; I was strolling along the banks of the river Thames, lost in my thoughts. I was wandering off the path slightly, my mind was soon drifting to more immediate geographical decision making concerns, how do I get to Hyde Park from here? I'd already had my caffeine fix in Covent Garden and had earlier in the day visited St Pauls Cathedral.