I keep coming back to the feeling that the missing product is not another place to write things down.
The thing I actually want is continuity. A system that can stay with the conversation across work, writing, fitness, money, family rhythms, and the next decision without making me reintroduce myself every time.
Capture still matters. Notes still matter. But the real value is reducing the distance between what was said, what mattered, and what should happen next. Maybe the product is not the notebook. Maybe the product is the part that remembers enough to ask the next better question.