https://bob-zhihe.github.io/writing/Technical notes and essays on personal AI, memory, and building useful products.enhttps://bob-zhihe.github.io/writing/after-muse-and-today/https://bob-zhihe.github.io/writing/after-muse-and-today/As personal agents become better at doing things, deciding what is worth doing becomes more important.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/dont-make-me-teach-my-ai-twice/https://bob-zhihe.github.io/writing/dont-make-me-teach-my-ai-twice/The value of memory appears in the next result, when an old correction saves new work.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/business-beyond-productivity/https://bob-zhihe.github.io/writing/business-beyond-productivity/Emotional value can be real. A product still has to earn a second use and pay for its own delivery.Building ProductsSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/we-lost-the-reader/https://bob-zhihe.github.io/writing/we-lost-the-reader/Shared context can make two collaborators forget the person they are writing for.Building ProductsSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/who-keeps-the-promise/https://bob-zhihe.github.io/writing/who-keeps-the-promise/A polished draft can quietly commit its sender to something they never decided.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/the-refusal-ai-edited-away/https://bob-zhihe.github.io/writing/the-refusal-ai-edited-away/Good rewriting preserves what a sentence does, as well as what it says.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/not-every-day-is-an-epiphany/https://bob-zhihe.github.io/writing/not-every-day-is-an-epiphany/An AI-generated interpretation of a life should not quietly become evidence about that life.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/the-right-to-change-your-mind/https://bob-zhihe.github.io/writing/the-right-to-change-your-mind/Long-term understanding should make it easier to revise an arrangement, not harder to escape an old profile.Personal AISun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/did-memory-change-the-decision/https://bob-zhihe.github.io/writing/did-memory-change-the-decision/A practical way to distinguish memory access, behavioral influence, and user value.Technical NotesSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/a-citation-is-not-enough/https://bob-zhihe.github.io/writing/a-citation-is-not-enough/Source support, speaker identity, and autobiographical truth are different checks.Technical NotesSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/when-an-agent-does-nothing/https://bob-zhihe.github.io/writing/when-an-agent-does-nothing/Evaluating restraint requires an opportunity to act—and an honest account of failures.Technical NotesSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/capabilities-are-not-modules/https://bob-zhihe.github.io/writing/capabilities-are-not-modules/Fix the boundaries that must hold. Let task structure earn its complexity.Technical NotesSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/relevant-does-not-mean-usable/https://bob-zhihe.github.io/writing/relevant-does-not-mean-usable/Context selection has to consider time, uncertainty, purpose, and the person receiving the result.Technical NotesSun, 27 Sep 2026 00:00:00 +0000https://bob-zhihe.github.io/writing/corrections-are-not-global-preferences/https://bob-zhihe.github.io/writing/corrections-are-not-global-preferences/Feedback needs an object, a scope, and a way to check whether the next behavior improved.Technical NotesSun, 27 Sep 2026 00:00:00 +0000