system
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human
[General] How does a world without Time and / or Space work?

In MCU we have two instances of this and one in the comics. Dormammu is said to be the precursor to time by the Ancient One and Dark Dimension appearantly has no concept of time. The Quantum Realm where Pym says both the concept of Time And Space become meaningless. My question is in the title. How do these worlds work?  Please explain in detail as I can't understand the concept at all. Without time there can be no movement and without space where will something even exist?
gpt
So, the current theory of the start of the universe is that there was a Big Bang, and all space and time emerged from that point. At which point, some clever dick usually asks what happened *before* the Big Bang.

Which misses the point. There *was* no before the Big Bang. That's the when time as we know it starts. The universe as we know it is a closed system, time ticking along, events happening in sequence according to physical laws. *Outside* our universe...it's anything goes. Different physical laws apply.

Caveat: This is the Marvel Universe. In the comics, time is cyclical: in the beginning is the Big Bang, and at the end is the Big Crunch, which in turn creates a singularity from which comes another Big Bang. A few objects (Infinity Gems) and individuals (Galactus) "survive" from one universal cycle of time to another. A bit like that one Futurama episode, only without the time machine.

The Dark Dimension's "timelessness" isn't quite what we think. Events occur there, in sequence, so there is time. But it's not the linear time-always-goes-forward portrayal that we're used to. The Dark Dimension is outside the physical laws of our universe. Time can go forward...or backward...faster or slower...or even spin off into weirder ways, so you might have multiple iterations of yourself interacting in simultaneous "nows." Time, in the Dark Dimension, is not a matter of physical laws but metaphysical ones. It may even be entirely subjective.

The Quantum Realm is more a matter of scale. Most of the physical laws we think of as normal and immutable - like time going forward or gravity being a constant - only apply at certain scales or frames of reference. Think of it like being in a car going down the highway - you don't normally get the sensation that you're moving, but when you look out at the landscape, you see it moving toward you, and when you look behind it speeds away, often getting blurry as it passes. That's your frame of reference changing, not the world. Same basic concept applies to normal physics. At the scale of humans-playing-baseball, your basic Newtonian model of physics works fine to understand the behavior of objects. Ball goes up, ball comes down. The force of the throw vs. the force of gravity over time describes the arc of the ball through space. You get really small in scale, though...things get weird. The Newtonian model of how things work no longer fits the observed behavior. Particles do weird things, things which seem nonsensical. That's the Quantum Realm. It's still sexy, sexy science, but it's got rules we don't understand yet. Way out of our normal frame of reference.