A reader asked why the notes are numbered and not dated. Because a date says when I wrote it; a number says where it belongs. The mechanism does not care what day it is.
On the contentsShort, dated asides: something noticed while running a practical, a reader's question answered in three lines, a second thought about a note. The only dated thing in this notebook, because dates are what you write in a margin.
A reader asked why the notes are numbered and not dated. Because a date says when I wrote it; a number says where it belongs. The mechanism does not care what day it is.
On the contentsThe notebook went live before the first note was written. That felt backwards, until I remembered that every notebook is empty when you buy it.
On the opening page