When I was a kid, the school bus let me off at the end of my grandmother's lane. I would walk the long farm road back to her house with the day ready to spill out of me, and she would be there with something cooking or an ice cream waiting.
One afternoon she called me by the wrong name. Another time she thought I was the neighbor kid. I was young enough that it did not register, not really, until a few years had passed and the word finally caught up to what I had been seeing. Alzheimer's.
From nine to twelve I watched her come apart. She knew us less and less, started placing us in the wrong years, mistaking us for people from other times. Near the end we frightened her, strangers in her own home, until the good days stopped coming and what was left was a glassy stare and a confusion that never lifted. Then she was gone.
You do not watch that up close as a kid and walk away unmarked. It changed what I notice. For years afterward, in the trades, I kept seeing a quieter version of the same thing. A house holds a decade of decisions and almost none of them are written down. The tech who knew why the repeater sat in that exact corner of the attic moves on, and the reason leaves with him. The client only knows it used to work.
Experience that takes decades to earn, gone in a two-week notice. A memory that took a lifetime to build, slipping out one name at a time. Different losses, same shape. And almost nobody builds against it.
So that is what I build now. Systems that remember. Memory that holds, that compounds, that can answer on Tuesday for what was decided in March. That is the work, and it is personal.