Stop cross-file drift with Google's IfChange/ThenChange comments

Before I start pitching you anything, let me do what any good salesperson would do: let's get personal. If you have a terminal and a repo you know handy, run this: git grep -iE 'keep.* in sync|stays? in sync|also update|must (also )?be updated' The number you get back is what this whole post is about. Reading on your phone? See what a similar search turns up in the Linux kernel and/or React . If the grep lit up Welcome. You already have this problem — informally, in prose, scattered across comme