This turns out to be equally arduous, involving leaps of faith over terrifying drops and being lowered by a piece of rope tied around my waist.
They take place high above the ruins of Chicago, involving leaps onto shards of concrete, a sky-bound rock climb, Tarzan-like vine-swinging, and a variety of a fight (too good to spoil) that's a perfect mirror of adolescence.
Typically, parkour involves leaping over rooftops and jumping off walls - a sort of high-wire circus act, except without the benefit of a net.
Others involve leaps, like the case of an invasive bullfrog: by 2080, it could splash into some of South America's most ecologically rich protected areas, disrupting unique hotbeds of biodiversity.
The most spectacular sequences involved leaping, in which the bodies of the monks left the ground and suddenly jackknifed, seeming to hang suspended for a beat, their ankles near their ears.
Like marriage, fighting climate change involves a leap of faith.
For broadcasters, which derive nearly all their revenues from advertising, deciding to put new programmes on a site like Hulu involves a leap of faith.Hulu's branding problemMr Bewkes points to another problem.
Another user, Anonymous|11057, acknowledged that his suspicion of Willman involved "a leap of probably bad logic".
Getting a small statue from the Syrians involved a leap of hope and years of effort on both sides.
One involved a leap of faith: self-consciously choosing innocence in the hope of reconstituting that lost world.
