Main idea

When an idea shows up and you put off writing it, it isn't the subject that fades. The subject you remember: you can restate it in one sentence weeks later. What disappears is everything else — the momentum that connected the pieces to one another, the precise example that made the idea tangible, the phrasing that held it together, and the reason the subject mattered at that moment.

The loss is therefore silent. You believe you kept everything, since you kept what you can name.

Why it matters

This shifts what a capture setup has to protect. Writing down a title or a theme preserves nothing of what gets lost: that is precisely the part you remember unaided. What has to be captured is the raw, complete shape of the moment — the example, the association, the irritation, the contradiction not yet put into words.

It also explains why a list of article ideas produces so few articles. It keeps subjects, which is to say exactly the part that was never missing.

Nuances and limits

Some ideas survive the wait: those resting on an already structured analysis, or on external documentary material you will find intact. The loss mainly strikes ideas born of lived experience, where the material exists only in memory.

And taking an idea while it's hot says nothing about its value. Temperature is not a quality criterion, it is a window of availability.

Open questions

• How long does the window last? A few hours, a day, longer depending on the type of idea?
• Does rereading the raw capture let you recover the temperature, or only observe that it is gone?