Your guide is David P., a former London mayor – secret histories down these little alleyways – how did the Brits get so rich – two trillion dollars – London intricately based on water – why? – lots of locals don’t know it’s there – coffee shops a crucial part of the history of London – drew a line and put their name under it, they underwrote – dynamic, bottom-up – Britain has always looked outward – tasted like cat’s urine – Britons should be ashamed of it – penny universities – London’s first barista – a system for putting money together – international money – Easy Winds – a twist of coffee-related fate – the singing Mayor…