“Also deadly are long questions that contain a lot of qualifying or self-promoting information: “I have a background in landscape architecture and am an admirer of Frederick Law Olmsted, who designed Central Park and is an underrecognized genius in my opinion, and I travel extensively and I’m struck by the enduring vibrancy and popularity of the great parks like New York’s Central Park and St. James’s Park in London and the Bois de Boulogne in Paris, so I’m wondering if you agree that we need to have more grand ambitions when we think about green spaces?” This was an actual question someone stood up and asked at a sustainable development forum. Don’t be that person.”