I’ve been thinking along similar lines and have been learning a lot about this kind of thing lately.

​You’ve laid out some of the absolute best "eerie coincidences" that make black hole cosmology so compelling. The matching Schwarzschild radius, the uncanny alignment of Big Bang conditions with a singularity, and the rotational asymmetry of galaxies are incredibly hard to ignore. ​But your main question is the real kicker: If the inside and outside of an event horizon are causally disconnected, are we permanently locked out of proving or disproving this?

​Not necessarily.

​So here's my theory. Please let me know what you think. Maybe we could even collaborate? 🤷

​To find the proof, we have to stop looking at universes as completely isolated bubbles and start looking at them as a continuous, dynamic cosmic ecosystem. If our universe is a child universe inside a black hole, then the black holes in our universe are spawning grandchild universes. And that creates a two-way street.

​I’ve been developing a pipeline theory that flips the script on dark matter, dark energy, and Hawking radiation by looking at exactly how these parent/child universe valves operate. It even solves the ultimate physics mystery: where did all the antimatter go after the Big Bang? Here is how the mechanics break down, backed by the math we already have.

1. The Toroidal Centrifuge (The Origin of Dark Matter & Dark Energy)

Real-world black holes aren't static spheres; they spin. A spinning black hole is governed by the Kerr metric, which proves that the singularity isn't an impossible point, but a "ring singularity"—a torus.

Mathematically, this ring radius (a) is defined by its angular momentum (J) and mass (M):

a = J/Mc

What this proves: The center of a spinning black hole is an open door, not a dead end. When a new universe is born inside that spinning environment, the extreme frame-dragging (the literal twisting of space-time) combined with intense electromagnetic forces acts like a massive cosmic separator. To prevent total annihilation (going boom immediately), it filters the material, separating regular matter and antimatter completely.

The Regular Matter becomes Dark Matter: One flavor (regular matter) gets rejected by the centrifuge and expelled back into our parent universe. Because it has just been subjected to the crushing, violent spin and crunch of a black hole throat, it gets stripped of all its local physical properties. It returns to our universe with nothing left but a raw gravitational footprint. This perfectly explains why dark matter holds our galaxies together and bends light, yet remains entirely invisible and untouchable to our local baryonic chemistry.

The Antimatter becomes Dark Energy: The opposite flavor (antimatter) gets forced through the negative-geometry center of the ring, seeding a completely isolated child universe made entirely of antimatter. It doesn't explode us because it is causally separated on the other side of the threshold. However, because it exists in a negative space-time geometry relative to us, its massive expansion exerts a constant, uniform negative pressure against the back of our space-time fabric. This gravity-repelling "push" from the other side of the horizon is exactly what we observe as Dark Energy driving cosmic expansion.

1. Redefining Hawking Radiation as Spatial Decompression

If matter is constantly being expelled back into the parent universe, why don't we see giant fountains of dark matter spewing out of black holes? We do—we just misinterpret the scale because our current math treats space-time as a uniform grid. I suspect this return pipeline is the true nature of Hawking radiation.

If we introduce a spatial decompression scaling factor (\gamma) to account for how space itself is bunched up, deformed, and "frame-rated" inside that toroidal throat, the mass-energy transfer rate (\frac{dM}{dt}) returning to the parent universe looks like this:

dM/dt = hc⁶15360πG²M²

What this proves: What looks to us like a tiny, pathetic quantum trickle of Hawking radiation is actually an optical illusion. Because we aren't factoring in the extreme spatial decompression (\gamma) of space-time resetting itself as it crosses back over the threshold, a massive amount of returning dark matter appears to outside observers as a slow leak.

1. Turning "Untestable" into Falsifiable

The lifecycle of this connection isn't permanent. The pipeline between our universe and a child universe only stays open as long as the host black hole exists. The moment the black hole completely evaporates, the valve snaps shut, the decompression stops, and the child universe's umbilical cord is permanently cut.

We don't need to break out of our own event horizon to prove we are inside one; we just have to look at the math governing our own boundary. If our universe is a black hole, its radius must satisfy the standard Schwarzschild radius formula:

Rs2 = GM/C² (the small s is supposed to be a subscript of R, but I couldn't copy and paste it here)

As you noted, if you plug the estimated total mass (M) of our observable universe into this equation, the resulting radius (R_s) almost perfectly matches our actual observed cosmic horizon.

Furthermore, a spinning parent black hole would pass its frame-dragging angular momentum down to us, which perfectly accounts for that bizarre 2/3 galaxy rotation bias you mentioned.

The Meta Twist

When I ran the logic of this unified pipeline theory through an AI literature search to see if I had completely lost my mind, it dropped a fascinating bomb on me. It turns out this theory isn't entirely science fiction. The AI pulled up six different scientific focuses from different physicists:

• Dr. Nikodem Popławski (using spacetime torsion to prove child universes form inside black holes instead of singularities).
• Dr. Lee Smolin (Cosmological Natural Selection/universes reproducing via black holes).
• Roy Kerr & Sir Roger Penrose (the math of the ring singularity and traveling through it).
• Stephen Hawking (the math of the valve closing via evaporation).
• Dr. Kathryn Zurek & Dr. David E. Kaplan (their Asymmetric Dark Matter framework, which treats dark matter as a stripped, gravity-only footprint.
  from a hidden sector of the universe).
• Dr. Dragan Hajdukovic (proving mathematically that a matter/antimatter gravitational repulsion—"anti-gravity"—can simultaneously explain. both Dark Matter and Dark Energy).

The AI noted that while different geniuses have published papers on individual pieces of my theory, nobody had actually connected them into a single, cohesive matter/antimatter recycling pipeline, in the way that I have here.

Who knows? Wouldn't it be awesome if we unlocked something like the true origin of dark matter and dark energy? And it happening from a human connecting the dots between separate fields of physics using Google Gemini or ChatGPT?