Iran vs the rest: the Middle East has reached a tipping point

Last year, in the cigar bar of an opulent London hotel much favoured by visiting Arabs, an interesting conversation took place. My friend was rich enough to have two private jets and claimed to be doing private shuttle diplomacy between Israel and one of the Gulf states. Smoke curled around our heads and a young Qatari in Gucci trainers passed by with a woman my friend assured me was a Russian prostitute.