Let in light. Banish shade. Photograph: PA
Global celebrity is, like it or not, a powerful force and if it can be mobilised to achieve noble goals that must be a good thing.
Perhaps this is even a time to put aside the media's traditional corrosive cynicism.
Imagines Elton John, Coldplay and REM projected onto a giant screen towering over Hyde Park all singing a medley of Shiny Happy People, Don't Let the Sun Go Down on Me and Yellow.
Oh please. Just a little bit of corrosive cynicism? We'll make up for it later. Promise.