Over a dozen days, the task for Paris is clear: drive fresh momentum behind a movement that, most critics agree, has not moved anywhere near quickly enough in the past dozen years.
The Paralympic Games of London 2012 were, by just about every metric and feeling going, the most successful of all-time, but the idea that they might permanently transform the perception and profile of disability sport around the world has been disproved by the fact they remain unrivalled almost three full cycles on.