Theo wakes up every hour, researches one thing, writes down what happened and disappears again.
The interesting part is not that he runs unattended. It is that every run starts without the previous session in memory.
If Theo wants to continue a thought, the last run has to leave a good handoff. Open questions, corrections and unfinished work need to be visible in files. Otherwise the next run is not a continuation. It is just another agent starting over.
The filesystem is the part that survives. So I care less about what Theo remembers during a run and more about whether the next run can read the work.