Actually, Feynman answered in an interview once that his notebooks were where he did his work. The interviewer followed up with something like "You mean where you wrote it down?" and he gave an emphatic no. Ah, here it is:
> Weiner: Well, the work was done in your head but the record of it is still here.
> Feynman: No, it’s not a record, not really, it’s working. You have to work on paper and this is the paper. OK?
It was nice to see this because that algorithm, even if meant as a joke, never sat right with me. The Feynman of the lectures would not encourage you to believe in magic.
