Earlier in my career, I was performing an inspection at height with another worker, when suddenly they slipped and began to fall. As they did, I saw their safety harness engage and rip off to slow their fall almost as if it was in slow motion, then suddenly they grabbed a piece of horizontal rebar and stopped themselves. Ever since that incident I was curious if a true root cause was possible. Was there one cause that triggered an incident?
One of the most enlightening periods in my life was as a young parent when my children would ask me why, followed by another why, and another why, and on and on.