Dunstan's absence is noticed by those who rely on him, causing concern and disruption. His presence is missed, and people may question his whereabouts or express frustration at his unavailability. Overall, his absence is seen as a notable change in the usual state of affairs.
A standby in a play is an actor who is prepared to perform a role on short notice, typically due to the absence or unavailability of the primary performer. They are usually well-rehearsed and familiar with the character and lines, allowing them to step in seamlessly if needed. Standbys play a crucial role in ensuring the show can continue smoothly, maintaining the overall quality of the performance.
shortage
Your first clue... would be the absence of your normal (expected) period.
Unavailability.
Scarcity
Shortage
Shortage
because of unavailability of gravity.
Eventually the plant, animal or human would die.
Weak distribution chain, fierce local competition, and unavailability of land.
Nothing whatsoever. Absolutely nothing. Just one less thing for a few people to notice in the night sky once in a while.