Holidays of Future Passed/References

References/Trivia

Season 23 Episode References

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"Holidays of Future Passed"

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Cultural references

The episode title is a pun on The Moody Blues album Days of Future Passed.
The rough-looking people flying airplanes are a nod to Mad Max.
The hotel where rock star Maggie and her band are staying is called The Benny Hilton, a pun on English comedian Benny Hill.
During the montage of Homer and his grandsons walking around Springfield, the music playing is "Me and Julio Down by the Schoolyard" by Paul Simon.
The robotic policemen seen in one shot closely resemble the Daleks from Doctor Who.
The Christmas-themed music during the credits is the same that is played at the end of "Treehouse of Horror XXII".
A poster in the Kwik-E-Mart advertises Soylent Green, proclaiming it to now have "30% more people!"
- Another poster advertises "Soylent Brown".
The St. Beatles Cathedral is a reference to The Beatles.
District 9 and District 10 are a reference to the film District 9.
NewTube is a parody of YouTube.
When Lisa goes onto the Ultranet, she notices that the Google logo is different and realizes that it's Dr. Seuss's birthday. In real life, Google changes its logo to commemorate birthdays of famous people and anniversaries of other significant events.
The Ultranet is very similar to and may draw inspiration from Futurama's Internet.
In the Heathrow Teleport, a man travels to New New York. This is most likely a reference to Futurama but there are other locations called New New York in Sci-Fi shows/movies.

Maggie has become a rockstar.
Maggie had one child.
Bart got married to Jenda, had two kids and got divorced.
Bart moved into The Lofts at Springfield Elementary.
Lisa got married to Milhouse Van Houten and had one child, Zia Simpson.
Abraham Simpson got cryogenically frozen until they found a cure for a disease he had. He was still frozen even though they found a cure because it's cheaper than a home for him.
Patty and Selma got Lovebots who then go off together instead.
Santa's Little Helper and Snowball V evolved into intelligent beings.

The crime scene in Moe's Tavern

Kearney Zzyzwicz has become a taxi driver. He is also an ex-convict; he tells Maggie that he was once in prison with Bart.
Snake Jailbird has now become a cyborg.
Apu and the Nahasapeemapetilon Octuplets work in the Kwik-E-Mart, where they have powerful guns.
The Octuplets have had octuplets of their own.
Apu's brother Sanjay has died, and Apu believes him to have been reincarnated as a cow.
The hounds owned by Mr. Burns are now just bones.
Ralph Wiggum becomes police chief and clones himself several times, with several of those clones dying, being killed by other clones.
Martin Prince received a sex change and became "Marcia Princess".
Eleanor Abernathy, Jasper Beardly, Gary Chalmers and Agnes Skinner are all cryogenically frozen.
Lenny and Carl have swapped brains.
Homer accidentally killed Edna Krabappel, leaving Ned to get back together with Maude's ghost.
From the chalk outlines on the floor of Moe's Tavern, it is evident that a number of people have died in the bar over the years. Among them are the Capital City Goofball and Sideshow Bob, the latter apparently after stepping on a rake.

Earth put a man on the sun.
Aliens are seen living on Earth peacefully.
Shrink rays have been invented.
Cloning is accessible to people.
Hover cars are seen around.
Cryogenic freezing is accessible to freeze ill people.
Prince Harry has brought back beheading.
Trees are revealed to be alive.
While the Internet still exists, many people (including Zia Simpson) go online via the Ultranet, a virtual reality environment that people connect to by plugging cables into ports on their necks.
Teleporting is now the most common method of travel, but some medical conditions, such as pregnancy, preclude it. Also, if you talk while being teleported, people on the receiving end can hear you.
- Bart's sons go to his apartment by teleporter. Before they arrive, Bart hears them complaining about having to spend Christmas with him.
- In London, Maggie is denied access to the teleporter due to her pregnancy, and is forced to take an airplane flight to Springfield.
People can get messages sent direct to their brains, called B-Mail. Viruses can be sent and can cause seizures.
Some people can hear thoughts. It is unknown if they hear them all the time or if it's at will.

Lisa mentions that it's Dr. Seuss' birthday. However, he was born on March 2, 1904 and the episode takes place just before Christmas. (It is possible, with all that has changed in the future, that Christmas is now observed in March.)
During the series of photos, if it was one for each year, Bart and Lisa attended in college when they were 15 or 16 years old.