THE RULES OF THIS UNIVERSE

Read this section first. Almost every confusion people have about the MCU traces back to not having these five concepts loaded.

Six singularities that predate the universe itself. When the universe was created, these singularities were forged into concentrated ingots. Each controls one essential aspect of existence:

Only beings of immense power can hold one without being destroyed. They are the engine of the entire first twenty-three films — the "Infinity Saga."

When do the characters work out what these are? Piecemeal, over five years. Thor: The Dark World (film, 2013) is where the term "Infinity Stones" is first spoken aloud. Guardians of the Galaxy (film, 2014) is where the Collector explains them properly and demonstrates that one Stone can wipe out a civilisation — the Power Stone would kill any normal being who touched it. Age of Ultron (film, 2015) is where Thor's vision makes him realise someone is deliberately collecting them. And Infinity War (film, 2018) confirms the endpoint: all six in one gauntlet is literal omnipotence. One gesture, any outcome you can imagine.

There's also a working rule the Asgardians follow: never keep two Stones in one place. That's why, at the end of Thor: The Dark World, the Aether (Reality) is handed to the Collector rather than stored in Odin's vault — the Tesseract (Space) was already there.

Full chain of custody for the Tesseract, since it's the one that moves most and confuses people most:

1. Hidden in Norway for centuries, placed there by Odin
2. 1942 — Red Skull steals it (The First Avenger, film)
3. 1945 — Rogers boards the Skull's aircraft. The Skull touches it bare-handed; it burns a portal through him and transports him away. Rogers never holds it. It burns through the floor and drops into the Arctic
4. Howard Stark, searching the ocean for Rogers, finds the Tesseract instead. He never finds Rogers
5. It passes to S.H.I.E.L.D., which Howard co-founded, and sits in storage for decades
6. 1995 — a S.H.I.E.L.D. researcher uses it to build an engine; the explosion gives Carol Danvers her powers (Captain Marvel, film)
7. 2012 — S.H.I.E.L.D. is studying it as an energy source. Loki takes it (The Avengers, film)

The main MCU reality is designated Earth-616. Other realities exist — infinite ones. In each, versions of the same people live different lives. These are called variants.

This matters enormously because of two things: the Fox X-Men films (a separate film universe, now folded in as another reality) and the Sony Spider-Man films (same). What used to be a legal-rights problem became a plot device.

Anchor beings. Deadpool & Wolverine (film, 2024) introduces the idea that some individuals are so central to their reality that when they die, the universe unravels around them. Logan was the anchor being of the Fox universe.

Whether every universe has one is never stated, and Earth-616's is never named — fan speculation lands on Stark, Rogers, or Parker, with nothing official behind it.

How do universes actually meet? Six established methods, all of which come up later in this document:

1. Sorcery — Strange's botched memory spell in No Way Home; portals generally
2. America Chavez — punches holes involuntarily (Multiverse of Madness)
3. Incursions — two universes physically colliding, destroying one or both
4. TVA technology — TemPads, TimeRippers, time doors
5. Accidental tears — Monica Rambeau and the quantum bands (The Marvels)
6. Whatever the Fantastic Four used to reach Earth-616

For most of the story, the multiverse doesn't visibly exist because something is actively preventing it. An organisation called the Time Variance Authority (TVA) prunes any timeline that deviates, maintaining a single "Sacred Timeline." They were created and directed by a being who feared what his own multiversal variants would do if left unchecked.

This is revealed in Loki Season 1 (series), and it retroactively explains why nobody noticed a multiverse for eleven years of films.

Every TVA agent is an abducted, memory-wiped variant from some pruned timeline, given a manufactured life and a false origin story — they were told they were created by the "Time-Keepers," which are props. They believe it completely. Keep that in mind when Mobius, Renslayer, and B-15 appear later.

In 2018, Thanos erased half of all life in the universe. Five years later, in 2023, the survivors reversed it. The vanished returned — the same age they'd been, having experienced no time at all. Everyone else had aged five years.

This is called the Blip, and it is the single largest piece of connective tissue in Phase 4. Half the population returning to a world that moved on without them causes housing crises, refugee organisations, identity fraud, grief, and resentment — all of which later films actually deal with.

Scope: the Snap affected the entire universe, not just Earth — but only that universe. Other realities were untouched, which is why the Peters from other universes in No Way Home have no Blip in their histories.

Marvel groups its films into Phases (release-order production blocks) and Sagas (story arcs spanning several Phases).

• The Infinity Saga = Phases 1–3 (2008–2019). Villain: Thanos. Object: the Infinity Stones.
• The Multiverse Saga = Phases 4–6 (2021–2027). Villain: originally Kang, now Doctor Doom. Object: the multiverse itself.

The Kang-to-Doom switch was a mid-course correction, and it shows in the seams. Several Phase 4 and 5 setups now point at nothing in particular. If parts of the middle feel unresolved, that's because they are.