What Cross-Outs and Insertions Tell a Careful Reader
Launch library · evergreen read

A crossed out word or a phrase squeezed into a margin shows a document's thinking changing in real time, mid sentence, which is a kind of evidence a clean, finished copy can never provide, since the finished version deliberately hides every trace of the choices that came before it.
Reading these small revisions carefully, asking what was originally written and why it might have been changed, can reveal hesitation, a shift in strategy, or a fact corrected before the document was ever sent, none of which would ever survive into a tidier, later fair copy of the same page.
This kind of close reading rewards genuine patience, since the insight rarely announces itself, it has to be noticed deliberately by a reader willing to slow down and look closely at what the page actually shows, rather than reading quickly for content and moving straight on to the next document in the pile.