About a month before this year's Prix de l'Arc de Triomphe, the French-language publication Jour de Galop devoted an entire edition giving guidance to those wishing to attend the Arc this year at Chantilly. "Don't be afraid," they advised. Much like the Breeders' Cup last year at Keeneland, the Arc at Chantilly was a large-format event coming to a smaller-than-usual stage, and in the months leading up to the event, many annual attendees told me they were going to sit this one out, anticipating a traffic nightmare, overcrowding, long lines and...