When creating a business process, designing for resilience in the face of changing staff and resources, can be an objective. Perhaps it should also be prioritized when designing one's own life processes? Consider two elders, one with a long-standing practice of using written notes in their life, and one without. As their memories decline, one compensates with notes, and degrades gracefully. The other, loses life scope far more sharply. And by the time the need becomes pressing, adding such practice becomes difficult. Just something I ran into ~recently.