If a climber slips, a rope can stop him from falling.

VOA: special.2009.12.09

Would he stop running up and down rope lines like an afternoon game-show host?

CNN: What the Loser Should Do

It is hard to overstate how revolutionary that rope and Andon board were for the auto industry: Allowing a mere blue-collar worker to stop the line would have been heresy in Detroit a few decades ago, as managers were more concerned about keeping up volume than quality.

FORBES: Late Bloomer