Shout Out / A Moon and World Apart

• Chapter 4 mentions Sunset working up a spell that would boil the alcohol out of a living being and sober them up without harming them. Don Accino had a similar ability, though he only ever demonstrated the ability to use it on himself, in This Bites!.
• Chapter 8 has Shining Armor describe himself as a "hippologist from space", the equine equivalent of the phrase "anthropologist from space", which was used in the My Teacher Is an Alien series.
• Chapter 9 has Sunset recounting the story of one of her classmates who hated learning and tried to forget all the lessons he received every day, but eventually found that if it was his idea to learn something, it could be fun. Similar events occurred in two different Sunday strips from Calvin and Hobbes.
• Chapter 10 has Octavia identifying Fiddly Twang/Fiddlesticks as her maternal first cousin. This same relationship held true of their human counterparts when they were introduced in Phase 2 of the Berylverse.
• In chapter 15, Luna is mentioned as obtaining extra water supplies from passing comets, a technique also used in 2061: Odyssey Three.
• Also mentioned in chapter 15, one of the power generation methods used to involve ponies turning their magic into electricity and funneling it into energy collectors, rather like lightningbenders working at power plants in Republic City in The Legend of Korra.
• Chapter 16 mentions the pony version of Sugarcoat, who is all but stated to serve in the Royal Guard (she's mentioned as being on a "tour of duty", and stationed in Canterlot). Pony versions of her have also been part of the Guard in Integration and the Quiververse.
• In chapter 21, Onyx says of the PCAs that "the trouble with these things? They're great for communication, but lousy for privacy." This is almost the same line used at one point to describe the URATs (essentially alien smartphones) in book 3 of the My Teacher Is an Alien series.
• In chapter 22, Sunset explains that unicorns' love of heights comes from ingrained habits — years of living higher up, because "the higher up they were, the harder it was for members of the other tribes to sneak up on them and startle them by making sudden loud noises while they were studying the workings of the universe." This is the same explanation, though not the same wording, as was given in The Great Alicorn Hunt.
• The Lord of Nightmares in this universe is later revealed to be named Trojan, after the Night Stallion from the Xanth books (who happens to have the same duties of crafting and sending out bad dreams as the Lords or Ladies of Nightmares in this multiverse). To top it off, Celestia later refers to him as "a horse of a different color", which is another of Trojan's titles.
• In chapter 28, when describing her arrangement with the Lord of Nightmares ("We don't bother him, and so far, he doesn't bother us"), Luna uses almost the same words as Tevye in an early scene from Fiddler on the Roof.
• In chapter 28, Celestia says that she wants their new prisoners to be in jail so long that the jail rots on top of them and they have to be moved to a new one, referencing a line from Doc Hudson's first scene in Cars.

---