The true test of whether a note you’ve created is discoverable is whether you can get the gist of it at a glance. Put it aside for a few days and set a reminder to revisit it once you’ve forgotten most of the details. When you come back to it, give yourself no more than thirty seconds and see if you can rapidly get up to speed on what it’s about using the highlights you previously made. You’ll quickly be able to tell if you’ve added too many highlights or too few.