> What does the author mean when they say "implement a speculative approach"? My guess is that they want to speed up testing by being able to say "this PR only

> What does the author mean when they say "implement a speculative approach"? My guess is that they want to speed up testing by being able to say "this PR only touches these files, and we know they are only tested by these tests, so we don't need to run all the other tests". And instead of needing to define these connections manually, it should be possible to use information from previous tests runs (although that information may be out of date depending on the changes being made, making it speculative). Anyways, just a guess