P1: Imagine a 2D plain. Since it's 2 dimensional, it's height is 0
P2: No matter how many 2D layers you stack on top of eachother, the total height remains 0, although you can move upwards and downwards between the layers.
(Essentially, since the 2D layer is folded, it appears as if you're traveling through "height" but in reality, you are traveling through 2d but skipping vast amounts of 2D space when you travel "up" a layer; the 2D layer is folded in such a way that you can travel 3 dimensionally, but really you're just travelling 2Dimensionally and skipping a vast amount of distance, which explains how it seems you can move "up" when there's no actual height since the total height is 0 as a result of every layer having 0 thickness (height)).
Understanding these basics, makes the Big Bang so much more believable; if the XYZ space is a 2 dimensional sheet with no actual height, then the Universe can be folded up infinitely and have an actual size of 0 (which is what a Singularity is), and the Universe we observe is the physical expression of a mathematical projection; /we are still inside the Singularity, it was an inward expansion, not outward, it only appears outward from our perspective./
Further proof: imagine a circle, and mark a North, South, East, and West Pole.
As you decrease the numerical distance between the poles, the circle shrinks, and those 4 points get closer and closer.
Eventually, those points would have no numerical distance between them, all 4 would /share the same XYZ location/...
In fact, all the infinite points of the circle's circumference would coexist on the same XYZ point they all share.
Therefore, a point is a sphere with a size of 0, in which the entire surface shares the same coordinate, since the sphere has infinite points on the surface, adding any distance between those points "inflates" the sphere above 0.
But if a Singularity is all there is, and there's no space "outside" the Singularity since it's all contained WITHIN the singularity, then there's no available outward coordinates for the Singularity to expand outward into, and the only other option is to expand INWARDLY.
Black holes combine, and if a White Hole is the opposite, they split apart.
If White Holes are the opposite of Black Holes we see in the present and future, then White Holes exist in the past.
So the White Hole of the Big Bang was actually an infinite Singularity collapsing in on itself, and all that infinite-density-powered gravitational collapse is what provided the kinetic momentum from what appears to be expansion from our perspective, when it's actually the Singularity "falling in on itself". The Universe appears to be expanding from our point of view, but we exist in negative space and it's actually the Singularity collapsing in on itself.
Further proof: If the Universe's size was actually 0 (since we are still in the 0 size Singularity), then why does it /appear/ to be so big?
Easy. If we exist in infinite-coordinates-negative space, /we can be SMALLER than 0, so from that perspective 0 can appear infinitely big.
Everyone wants a Unified Field Theory but we've had it the whole time; math links every theory together, therefore math itself is the fundamental field of all physics. Math cannot be created nor destroyed, only discovered, just like matter/energy. Without math, nothing physical could exist, because all physical phenomena have some sort of numerical quantity to them.
Now, you can still move in a XYZ, positive direction, because if an objects size (within negative space) increases, it gets closer to the macro 0, so even though we exist within negative space inside the Singularity, we can still move positively because the larger the size the close we get to the 0 size of the Universe, so we can still travel in a positive direction.
Negative space is infinite, so we can be infinitely far away from 0, which means the Universe can appear to be to be infinitely large even if the total size is actually still 0.
Perhaps the black hole at the center of every galaxy was a miniature white hole that split up from the omega White Hole at the Big Bang, after spilling out it's contents (from our perspective) the spacetime hole, was empty, and reverted back into a black hole state and all the black holes we observe are divisions of the infinite Singularity that we are still inside.
The space we see is actually negative space, but from our perspective looks like positive space; /it's both at the same time/, therefore the totality of both negative perspectives and positive perspectives cancel each other out, and all spacetime is net 0 neutral spacetime, which is totally compatible with the fundamental fact that math is itself the fundamental field of all reality, and there can be an infinite amount of neutral numbers, just like an infinite amount of neutral space.
Like, -5 & +5 = 0, but it also equals neutral5, since you literally neutralized the number 5.
All neutral numbers have 0 positive or negative value, so every neutral number = 0.
Negative infinitity & positive infinity = neutral∞.
Therefore 0 is not just 0, it's neutral infinity.
So the singularity didn't contain "no size", it contained infinite neutral size.
Like they say, it's all about perspective!
The Mathematical Field Is The Unified Field.
You can have math without science, but you cannot have science without math.
"Look, Morty! I just solved the Universal Field Theory! Do you know what this means?!?! We can finally break out of the MetaVerse!!!"
"Ah Geez, Rick! Idunno, this place seems kinda lame... Is this what reality really is? Seems like a letdown. Like what's gonna be the adventure, man?... get a job and pay taxes? It just sounds lame, Rick."
"Morty! You're not thinking big enough Morty! Of course reality is more boring than the MetaVerse... I'm a fucking genius and we broke INTO the real world... Dont you *BURRERPPP* get it, Morty?'
"Aw geez, Rick, this place is full of boring people how is more science gonna fix that? Let's just go back."
"Morty! You're an idiot Morty! If we broke into base reality... W-w-w-we can bring all the fun characters in here with us, u-u-u-using science Morty!!! We can fuck with these people, Morty! They're BURRRRRURUP so stuck up obsessed with controlling everything, they take themselves way too serious! They think they're safe from chaos so they're gonna lose their shit Morty! They watch our show in this reality and they think just because it's a show they don't have to worry about us coming to f$#& Sπit up! We *BURRRRRP* got it Morty! Th-th-th-is is the plot for our New Season of Rick and Morty, we invade reality!!!! Then never saw it comin'!!!! Wubba Lubba Dub Dubbb!!!!"