Pile of Indexcards

We can descrive a scene by words, by paint, by drawing, etc. The easiest way is, in this age, taking a snapshot with digital camera. When we find something beautiful, interesting, or curuous, we simply take a photo. After that, we can forget about it for a while. And later, we remember it again when we see a photo album.

We find ; take a photo ; forget ; and remember again.

What about idea in our mind? An idea is abstract and invisible : It is impossible to take a photo.

But we have indexcard and fieldnote. We can take a snapshot of our idea with them, like taking snapshot of scene.