ABSTRACT
There are several ways of playing with vertigo: sometimes the risk is minimal, at worst a bad fall, for instance from a fairground roundabout, or while waltzing, or mountaineering with a stout rope. By contrast, skiing down a near-vertical slope, or walking a tightrope between the Trocadero and the Eiffel Tower, means running considerable risks as the slightest mistake may prove fatal.
