A possible concise summary is:
This is a video that lists 107 facts about Gravity Falls, a cartoon series created by Alex Hirsch. The facts cover the characters, the setting, the mysteries, the references, and the behind-the-scenes of the show. Some of the facts are based on Hirsch's personal experiences, inspirations, and preferences. The video also reveals the identity of the author of the journals, a major plot point in the series. The video ends by asking viewers to like, comment, and subscribe to Channel Frederator.
Here are the key facts extracted from the text:
1. The number 618, specifically June 18th, is a recurring number in Gravity Falls and is actually the birthday of creator Alex Hirsch and his twin sister.
2. Dipper and Mabel are loosely based on Alex Hirsch and his twin sister Ariel.
3. Soos is based on a friend of Alex Hirsch named Hazy Shamrock.
4. Alex Hirsch is the creator of Gravity Falls and also voices Grunkle Stan.
5. The letter "H" is a recurring symbol in Gravity Falls, possibly a nod to Alex Hirsch's last name.
6. There are cryptograms in the end credits of each episode of Gravity Falls.
7. Listening to the whisper at the end of the theme song in reverse gives a clue on how to solve the ciphers.
8. Alex Hirsch writes all the ciphers himself and usually inserts them last minute.
9. Bill Cipher takes on the form of the Eye of Providence, also known as the all-seeing eye of God.
10. The cave Dipper is seen exploring in the theme song has what appears to be ruins on the wall, but one character doesn't match up with any known ruins and the others have no translatable meanings.
11. All three journals shown have maze pages that fit into one another.
12. Stan's tattoo actually means "watch your back".
13. Mabel's love for colorful sweaters was inspired by Alex Hirsch's sister's lime green troll doll sweater.
14. Grunkle Stan is based on Alex Hirsch's real grandfather.
15. Stan Pines, also known as Grunkle Stan, was inspired by Alex Hirsch's great aunt Lois.
16. Mabel's pet pig, Waddles, was inspired by Alex Hirsch's sister's childhood desire for a pet pig.
17. Waddles was named by a writer on the show, Ari Wallington, after her childhood pet pig.
18. The location of Gravity Falls is inspired by Boring, Oregon, a town that Alex Hirsch's family would sometimes pass on road trips.
19. When Waddles eats mushroom powder, he morphs into a super genius and constructs a machine that allows him to talk.
20. Neil deGrasse Tyson voiced the genius pig Waddles.
21. Kristen Schaal was Alex Hirsch's first choice to play Mabel.
22. Kristen Schaal cosplayed as Mabel at the 2013 San Diego Comic-Con.
23. Alex Hirsch's sister, Ariel, guest-starred in the episode "Boys Crazy".
24. Matt Chapman, a writer on Gravity Falls, is also the co-creator and primary voice actor on Homestar Runner.
25. Ariel and Alex Hirsch grew up in Piedmont, California, which is also where Mabel and Dipper are from.
26. Jason Ritter almost wasn't the voice of Dipper due to commitments to another show.
27. Soos's director, Ian Worrell, is Alex Hirsch's college roommate.
28. Mabel once had to go to the hospital for eating scratch-and-sniff stickers.
29. Dipper's favorite band is a nerd rock group called The Bad First Impressions.
30. Dipper secretly listens to Top 40 hits and the Icelandic pop group Baba.
31. Grunkle Stan has been practicing the same coin trick since 1982.
32. Wendy and Robbie met at a fifth-grade birthday party and had a fight.
33. Soos's role models are Grunkle Stan and his Abuelita.
34. One of the manatees is named after a full-size taxidermy buffalo that Alex Hirsch keeps in his office.
35. Between the first and second seasons of Gravity Falls, the creative team took a road trip up the coast of Oregon and visited tacky tourist attractions.
36. Dipper is secretly jealous that Mabel is more socially adept than him.
37. Alex Hirsch has made several appearances on the show as himself.
38. The birthmark on Dipper's forehead was inspired by a classmate of Alex Hirsch who had acne.
39. Writers on the show initially thought Dipper and Mabel didn't get along, but Alex Hirsch established rules for their relationship, including that they like each other.
40. The series of Gravity Falls takes place over the course of one summer.
41. Dipper's nickname comes from his birthmark, which is shaped like the Big Dipper constellation.
42. Dipper's real name may be Roderick or Dominic.
43. Mabel is the older twin by five minutes.
44. Dipper and Mabel's middle names are their parents' first names.
45. David Lynch was offered the role of Bill Cipher but declined.
46. Mabel has a crush on Alexander Hamilton.
47. Wendy's favorite color is flannel.
48. Wendy is based on several different people.
49. Bill Cipher has done an AMA on Reddit.
50. Mabel is envious of Dipper's academic prowess.
51. When Mabel has nightmares, she meows herself back to sleep.
52. Soos's middle and last name are references to Gravity Falls storyboard artist Alonso Ramirez Ramos.
53. If a blanket is placed over Soos's head, he falls asleep.
54. Soos's father is Caucasian and his mother is Hispanic.
55. Soos is the only main character without a criminal record.
56. Alex Hirsch came up with the idea for Gravity Falls while walking up Vermont Avenue in Los Feliz.
57. Alex Hirsch has confirmed that Wendy's mother is no longer with her.
58. If Alex Hirsch could have any guest star on the show, it would be John Stewart.
59. Dipper is ambidextrous.
60. At the end of the show's theme song, images flash that show Bill Cipher, a wheel, and various symbols and writings.
61. The Konami code can be seen in the same image towards the bottom right.
62. Grunkle Stan's favorite treat is toffee peanuts.
63. Stan grew up in New Jersey.
64. Dipper can play the sousaphone.
65. When Dipper gets super sleep-deprived, he unknowingly starts to eat his own shirt.
66. Dipper is ticklish under his arm.
67. Stan owns 10 guns and his appearance hasn't changed in the last 10 years.
68. All the fingerprints on Stan's right hand have a double loop whorl pattern.
69. Alex Hirsch took a trip to Florida when he was 12 and was inspired by infomercials for the car dealership Family Auto Mart.
70. Bill Cipher's favorite song is apparently 10 hours of rising Shepard tone.
71. Bill Cipher claims that life tastes like uracil, cytosine, and thymine, and he dislikes it.
72. Gideon's design is based on televangelist Benny Hinn.
73. Gideon's skin is so soft because he steals Wendy's moisturizer.
74. Gideon Gleeful is a play on the phrase "Gideon's gleeful".
75. Robbie Vee secretly draws anime.
76. Robbie Thompson is known for at least 10 years.
77. Thompson once ate a waffle that had been run over for 50 cents.
78. Brad Breeck is a songwriter and composer for Gravity Falls.
79. Nilsa Serega, a storyboard artist on the show, is the sister of songwriter and composer MISA Serega.
80. Wendy wants to live in Portland.
81. Soos writes fanfic about Stan and keeps a photo of him on the break room door.
82. The commercial for the Gravity Falls Subway Kids Meals features a voice that sounds different from Kristen Schaal's.
83. Mabel once fed baby birds using her mouth.
84. Dipper has always wanted the name Tyrone.
85. In 2007, Alex Hirsch created a short called Off-the-Wall, which eventually led to the development of Gravity Falls.
86. Stan has a box of fake IDs and passports with names like Hal Forrester and Stetson Pinefield.
87. Alex Hirsch once leaked a fake photo of Old Man McGucket writing in the journals.
88. The recurring goat in the series is named Gompers after American Federation of Labour leader Samuel Gompers.
89. The show is full of references to David Lynch's Twin Peaks.
90. Dipper wrote a theme song for himself that he sings in the shower.
91. Pacifica Northwest's name is a pun on the Pacific Northwest region of the US.
92. Bill Cipher wants to see Dipper's tick jalapeno peppers in his eyes.
93. Despite her designs always incorporating purple, Pacifica's favorite color is pink.
94. Bill Cipher was asked on Reddit if he had a family, and he replied, "Not anymore."
95. Bill Cipher responded to everything on his AMA in all caps because he thinks in capital letters.
96. Quentin Trembley is Alex Hirsch's favorite character to voice.
97. Quentin Trembley is based on President Theodore Roosevelt as he appeared in one of Alex Hirsch's student films.
98. Pick Cola, which appears in almost every episode of Gravity Falls, is named after one of the show's directors, Joe Pitts.
99. The brand of the TV in the Mystery Shack is Worrell, named after production artist Morals.
100. Gravity Falls' main theme is often confused with the theme song from the MTV show Awkward.
101. The pop onions in the theme song are a reference to the Paul Bunyan statue from the Trees of Mystery roadside attraction in Oregon.
102. If you search for Gravity Falls on Google Maps, it will point you to the Oregon Vortex.
103. The shapeshifter was inspired by John Carpenter's The Thing and Clayface from Batman: The Animated Series.
104. Gompers Barz's tattoo is the astrological symbol for Mars.
105. Old Man McGucket's original name was Crazy Larry, and his full name is Fiddleford Hadron "Old Man" McGucket, with "Hadron" being a reference to a class of subatomic particles.
106. Alex Hirsch joked on Reddit and Twitter that the author of the journals is actually Geordi La Forge from Star Trek: The Next Generation.
107. The author of the journals is actually Grunkle Stan's long-lost twin brother.