Okay, it seems like there are a few questions here. If I have it aright, you're asking:
1) How can one travel into miniaturisation-universes, a-la Ant-Man?
2) Ideas regarding multiversal travel in general
3) What would be needed to survive in another dimension
4) What tech would be required:
a) To get there
b) To survive there
c) To explore there
d) To colonise there
Is that correct?
If so, my own thoughts thus far:
Overall, most of this would depend on the nature of such worlds and of miniaturisation in the setting.
As far as I'm aware, our world hasn't been found to have "micro-verses". Parallel universes have been theorised, but I don't know whether we've had any theory on how one might reach them, or how different they might be.
Likewise, I don't know that we have a clear way of miniaturising a person in the manner of Ant-Man.
As a result, most of this falls into the remit of speculative fiction, and thus is up to what the writer deems.
(Note: I'm not saying that these things will never be discovered; just that they're not currently known to science, to the best of my—admittedly layman's—knowledge.)
If the writer says that the parallel world has an environment just like our world, then no special tech is called for; if they say that it developed under radically different natural laws, then some super-science tech that maintains a local "natural law" field might be required; if they say that the base laws are fine, but it's full of hydrogen, then care with sparks and fires would be called for; and so on and so forth.
Er... what is that source material? I gather from your sentence that it's not Ant-Man, but you haven't specified what it is...
Edited by ArsThaumaturgis on Feb 5th 2024 at 9:30:48 PM
My Games & Writing
As far as we know, in Real Life the only ways to drastically alter the makeup of spacetime are a) superdense masses and b) negative masses. The latter might (depending on how quantum gravity and the cosmological constant issue shake out) by inducible via the Casimir effect, which relies on very closely separated plates.
So you need a crystal or material with very closely separated nanometer-scale plates. Probably extremely dense and perhaps inducible via oscillations. Which might also allow for negative matter waves to propagate out and open up wormholes/portals/whatever. So you need that matter as phlebotinum that rearranges the spacetime.
"For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled." - Richard Feynman
Like reflections in the glass!
![[up]](https://static.tvtropes.org/pmwiki/pub/smiles/arrow_up.png "[up]"){kind=icon}
will keep that in mind
I found about holographic universes and anti de Sitter spaces, I'm currently aiming to see if they can also be used and want to ask any quantum physics and string theory enthusiasts to weigh in.
Like reflections in the glass!
Okay I think I settled on a method, so again I want to pivot this to a more general discuss.
ahem
thinking with portals. What are the usual mechanics of wormholes and what science is there to back them up?
By "usual mechanics", I presume that you mean the mechanics of "our world"; wormholes have varying mechanics in various other settings.
To the best of my knowledge, wormholes are essentially (posited to be) massive distortions of space-time, very like black holes in their geometry. However, where a black hole terminates in a singularity, a wormhole never becomes less than a "tunnel", and connects to another of its kind on the other side.
Visually, my best understanding is that a wormhole would appear as a large sphere. At its periphery there would be gravitational lensing of what's behind, and within there would be a view of the interior and whatever lies on the far side.
(Possibly warped to some degree, due to the geometry of the tunnel—but I'm not sure about that.)
Physically, I think that one would find oneself gravitationally attracted to the "mouth" of the wormhole, and thus "fall in" if one were to draw close.
For a likely-more-up-to-date-and-complete discussion, here below is the Wikipedia page on the subject:
https://en.wikipedia.org/wiki/Wormhole
Okay i make this thread to discuss the mechanics of traveling between dimension, for Sci-fi and some fantasy works.
I make this thread specifically to ask about ways one can travel into microverses (dimensions accessed by shrinking, a la AM&TW Quantumania, and the source material from which "microverse" is derived.), but I also want it to be used as a springboard to discuss ideas on mutliversal travel in general beyond that purpose. I also want to ask about what qualities would be needed to survive in such dimensions.
I mainly want to ask what tech would be needed for such feats, and to explore and colonize worlds parallel and perpendicular both. as well as to discuss instances of dimension hopping tech in fiction.