The wrong platform.
An ordinary delay can change what becomes possible. That does not make every delay a secret gift.
Suppose an editor takes a different train and arrives ten minutes late. She misses a pitch meeting but notices a small independent bookshop hiring a part-time events organiser. Years later, she traces her career through that window display. It is a lovely origin story. It is also a selection from an enormous field of unrecorded alternatives.
Path dependence asks how earlier states can shape later options. In economics, Paul David's study of the QWERTY keyboard became a famous illustration in debates about historical lock-in: once practices, infrastructure and expectations accumulate around a path, changing direction may become costly. The analogy here is suggestive—not proof that careers work like keyboard layouts. [1]
The other side: a missed train can simply cost someone wages, safety or a chance that never reappears. The retrospective romance of accidents is easiest to indulge when the material cost was survivable. And sometimes the apparent turning point is less important than a long accumulation of ordinary practice.
“Everything happens for a reason” cannot be inferred from the fact that a reason can be narrated afterwards.