You should watch my Outer Wilds Timeline video.

I wouldn't say they didn't try to explain why Brittle Hollow starts breaking at the start of the loop. A computer in the Hollow's Lantern volcano says "WARNING: Increased solar activity detected. WARNING: Increased volcanic activity detected."

I like to think that in shipless speedruns, as soon as hatchling takes off without their ship,  Slate just looks at the sky where you went and goes: what the actual fuck

"Outer Wilds is sort of like Interstellar if it were turned into a game, which I would say is the best compliment you could ever give Interstellar"
Peak quote, I will steal

Another cool fact about the nomai writing that's not mentioned in the video:

You may have wondered why some of it is orange instead of blue. That's because it wasn't written locally but remotely instead. That's why the wall in the vessel with all the messages from the nomai that are currently alive is covered in orange text only. If you go to a projection pool, read the messages there and then get to the location it's connected to, you'll find the same conversation but with the colors swapped :)

Fun fact!
I passed a geology class because I knew the hearthians are named after rocks! This being my favourite game helped me memorize the rocks and types I needed to pass

The two Stranger hangers is one of my favorite pieces of game design. Players will probably search the first hangar thoroughly, not notice the second hangar is a second hangar, and not search the second hangar -- letting the game hide something in it to be discovered elsewhere.

The probe in the eye is probably the most missable thing on your first play-through and it’s such a nice touch when you find out you can actually see it

Something interesting I haven't heard anyone else talk about regarding EotE is that every slide reel up until the point where the "Prisoner" is locked up are all in that painted or hand-drawn art style.
The very last slide reel chronologically in this era would be the one showing the prisoner being locked up and the signal blocker being turned back on (the un-burned version of this slide reel being the vision the prisoner shares with you).
The very next slide reel chronologically depicts the crowd leaving the site of the submerging sarcophagus to go burn slide reels. This reel, and all subsequent reels created post-submerging, are in a filmed or "3d" visual style.
This implies the prisoner was a sort of archivist in their life before and was responsible for all of the artwork up until their imprisonment. Once the prisoner can no longer create the slide reels, the artistry and creativity of the projections is replaced with a more raw footage sort of depiction for any slides relating to the 3 codes, burning slide reels, or the secret in the tower.
Possible rebuttals of this theory cite that the error reports and simulation explanations are in the painted style as well, though this is easily explained by the prisoner still being free and complicit with the creation of the simulation when these reels would have been created. Another inconsistency are the footage accounts of the three test chamber experiments, though these are viewed through projection staffs rather than slide reels and thus depict the test subject's point of view.

28:41 Very minor correction, but the statue used in your ship's computer is the same statue you paired with and that's why it's your memories being updated in the log. In the video, you say that Hal tells you "that the ship actually actually uses a piece of another statue as a hard drive" but it's actually not "another" statue than the one they're standing next to.

Side note about the first fact: not only does the logo collapse, the stars in the background also explode , leaving only the campfire as a light source

35:00 I disagree they actually explain it in the base game. The twins transferred sand for the entire time they were around. Maybe it’s transferred faster because of the supernova but that was happening all the time. Brittle hollow starts collapsing during the loop because the supernova increases the volcanic activity of its moon and starts the bombardment. You can read nomai text inside the moon that explains the situation.

For the ship log, I assumed that the hatchling was the one rewriting all this info in each loop. Neat that there is a better explanation.

I’ll be honest, I was sobbing during the prisoner’s cutscene, that song is so beautiful

Regarding the anglerfish in Ember Twin, there is Nomai writing above the room which says that the anglerfish most likely died of starvation, meaning the anglerfish possibly crashed into Ember Twin while it was an ocean (potentially in an ice cap like the jellyfish in Giant's Deep), tried to swim around in the caves looking for food, but couldn't find any/got trapped and starved to death in that specific room.

Had to immediately hit the like button because of you putting the DLC relevant bits at the end of each section. Extremely considerate of players like me who are in between finishing main game and DLC but are still endlessly curious.

As far as the protagonist’s name goes, take this with a grain of salt because it’s secondhand information, but I’ve heard that in the Italian version they’re called “Pebble”, in keeping with the rock-based names of the Hearthians.

I obviously now refuse to refer to them by any other name.

Honorable mentions: The O in the Outer Wilds logo may have teased Echoes of The Eye all the way back on the base games launch. The song that plays when your at the Sun Station is The Search in reversed, symbolizing the nomais will to go against nature. There was also a simulation control panel room that was originally going to be in Echoes of The Eye but it was cut from the game due to the game being really close to launch.

Giants Deep doesn’t only give Megalophobia, but also Thalassophobia. Any dark place like the caves of Ember Twin can also give a feeling of Nyctohobia. I’m Thalassophobic and Giants Deep as well as the underground of Timber Hearth was absolutely horrifying for me.

having players enter the stranger from the deep space satelite is really cool because you see the stranger from behind and it looks a lot more dark and ominous but when you enter after marking it on your ship log you go into the sunward side where its brighter and more familiar