It's this spirit of continuity and collaboration that distinguishes the New York performance world from the boom-and-bust arc experienced by most scenes.
Back in Barry, the series arc rumbles along toward a climax we still can't predict.
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Then there is Philippe, Duke of Orléans (Stanley Tucci), a character with no function and no arc at all.
(An analytical arc as groundbreaking as that is going to challenge common sense at a number of levels).
In Britain, the US and France the top 1% have over the past 100 years seen their fortunes rise and fall and rise again in a U-shaped arc.
Antigua is famous for its 365 beaches – one, the brochures say, for every day of the year – but the closest to the cottages, a quiet, sweeping arc of sand known as Galley Bay, is just a three-minute walk down the hill.
After a few more bends, we emerged into bright sunshine on a sandy arc of a beach, deserted except for the crabs scuttling away in the surf.
That they recovered to make 278 and cause more than few jitters through the England camp as the ball flew the boundary was down in part to some powerful hitting and in no small measure to some benevolent bowling that tended to put the ball into the arc of the bat swing rather nicely.
The arc of his involvement with what is now the world's most menacing terrorist group mirrors many others who now hold senior positions in the group: first a battle against an invading army, then a score to be settled with an ancient sectarian foe, and now, a war that could be acting out an end of days prophecy.
This research highlights how bright children from poorer backgrounds are not necessarily on a gradual and inevitable arc of achievement, but that it is a dynamic process, requiring recurrent support.
