So, conceived of the process that took him from note-taking to a connected text as consisting of three stages:
- first, capturing or recording things without attention to order or clarity in a notebook
- second, separating different items, putting them into some order, and re-entering the information it in another book
- third, formulating the problem and its solution, by giving an explanation that establishes the connection between its "parts"
So, he processed the stuff that he had collected at least twice (or, if you count the first writing down, three times).
We tend to forget that "digesting" the information we gather is important, more important than simoly collecting it. We need to "digest" it, as Bacon said. And our tools can help us in doing so, but they cannot do it for us.
In fact, many people seem to think that they should "automate" and "streamline" their interaction with the material they want to write about. This is counter-productive. You should interact with the materials as much as you can. "Thinking is not the shortest distance between two points" (Hans Blumenberg).