If you would have told the me in this picture, the me of 4 days ago, that Notre Dame would go up in flames, I wouldn’t have believed you. Having walked the city for thirteen miles the previous day, we were tired, on the last leg of our 36-hour jaunt in the city before returning to our friends’ house on the outskirts of Paris. “You at least have to see Notre Dame,” I told my fourteen-year-old. “You can’t go to Paris and not see Notre Dame.” Three days later, back in London, watching the cathedral engulfed in flame on BBC News, I wondered if this statement would be tragically and…