in src/main/scala/ophan/google/index/checker/model/ContentSummary.scala [46:52]
def timeSinceUrlWentPublic()(implicit clock: Clock = systemUTC): Duration =
Duration.between(firstPublished, clock.instant())
def shouldBeCheckedNowGivenExisting(availabilityRecord: AvailabilityRecord)(implicit clock: Clock): Boolean = {
!availabilityRecord.contentHasBeenFound &&
!availabilityRecord.missing.maxOption.exists(_ > clock.instant().minus(3, MINUTES))
}