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What If We Could Open a Portal to a Parallel Universe?

What If | January 8, 2026



What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And what if we don’t have to look too far to find them? Maybe a mirror version of our reality is right here… Our Universe began when a small, but very hot singularity exploded in the Big Bang 13.7 billion years ago. But maybe it wasn’t the only one to be born then.

Transcript and sources: https://insh.world/science/what-if-we-could-open-a-portal-to-a-parallel-universe/

Watch more what-if scenarios:
Planet Earth: https://www.youtube.com/watch?v=_-HhCwYD7rc&list=PLZdXRHYAVxTJCzxwmCq0NNpYq9N9wyb2l
The Cosmos: https://www.youtube.com/watch?v=gfuJyVkMH_g&list=PLZdXRHYAVxTJno6oFF9nLGuwXNGYHmE8U
Technology: https://www.youtube.com/watch?v=CS3bBO05fpU&list=PLZdXRHYAVxTIeRY3JtgXgoGqSEB7kDdKO
Your Body: https://www.youtube.com/watch?v=QmXR46TrbA8&list=PLZdXRHYAVxTJNsV9FFeNAKl2ySsHj8GZO
Humanity: https://www.youtube.com/watch?v=fdCDQIyXGnw&list=PLZdXRHYAVxTIFnvmOeWbv-Mt8zFxSCSvZ

What If elsewhere:
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“Imagination will often carry us to worlds that never were. But without it, we go nowhere.” — Carl Sagan

What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.
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Comments

This post currently has 44 comments.

  1. @zianimohamedanwar

    January 8, 2026 at 6:22 am

    The Superposition of Universes: The Hidden Geometry of Parallel Reality
    The Unified Fundamental Equation (S_Unified)

    S_Unified = Tr_ω { (1/4) Σ_I [D, π(E_I)]† [D, π(E_I)] + Ψ̄ ( i D_slashed(A) − Y(T11, Φ) ) Ψ + (1/2) N_R† M_n(T11, Φ) N_R + h.c. − [ λ_A(μ) ( Tr_ω( A_IJK A^IJK ) − M26^4 )^2 + λ_T(μ) ( Tr_ω( T11† T11 ) − M19^4 )^2 + λ_Φ(μ) ( Tr_ω( Φ† Φ ) − M7^4 )^2 + λ_mix(μ) Tr_ω( [T11, Φ]† [T11, Φ] ) ] − (1/(4 g(μ)^2)) Tr_ω( G_IJ G^IJ ) + S_ghost_BRST + S_topo + β_Malcev Tr_ω( C_Malcev† C_Malcev ) + Λ_gap ( min_{λ≠0} |λ(D_A)| − Δ_E )^2 }

    The Effective Action Equation in Four Dimensions (S_eff)

    S_eff = ∫ d^4x sqrt(-g) { ((2.43×10^18 GeV)^2 / 16π) R − (1/4) Σ_a (1 / g_a(μ)^2) F^a_{μν} F^{a μν} + |D_μ H|^2 − λ_H(μ) ( |H|^2 − v^2 )^2 + Σ_f Ψ̄_f ( i γ^μ D_μ − y_f( <T11>, <Φ> ) ) Ψ_f + ρ_DM[defects of A_IJK] + ((1.22×10^19 GeV)^4 – ∫_{Δ_E}^∞ ρ_spec(λ) dλ) + V_stabil(g_int) }

    Explanation: From Geometry to Overlapping Universes

    These two equations describe the journey of reality from absolute potentiality to definite manifestation. S_Unified is the "Equation of Potentiality"; it does not describe a single universe but rather the mathematical blueprint for the entire cosmic "energy landscape." It is a sea of geometric possibilities latent within the internal fields T11 (symbolizing the geometry of 11 dimensions) and Φ (symbolizing the geometry of 7 dimensions). In contrast, S_eff is the "Equation of Actuality"; it describes our observed universe, which is merely one stable "valley" within this vast landscape, one solution among a myriad of possible ones.

    The logical proof for the possibility of a mountain existing where a house stands in two parallel dimensions stems from a sequence of three facts imposed by this structure:

    First, the laws of physics we experience are not fundamental but are an emergent shadow. Look at the term y_f(<T11>, <Φ>) in the equation of actuality, S_eff. This term tells us that the mass of particles (like the electron) is not a divine constant but is a function dependent on the "vacuum expectation values" or the "stable state" (<…>) of the hidden internal geometry of T11 and Φ. Our physical laws are an accidental consequence of the specific shape our seven curled-up dimensions have settled into.

    Second, mathematics indicates that this shape is not the only possible stable solution. Look at the potential terms in the fundamental equation S_Unified, such as λ_T(μ) ( Tr_ω( T11† T11 ) – M19^4 )^2. These terms create an "energy landscape" with complex topography, full of valleys and hills. Finding a "stable universe" is equivalent to finding the "bottom of a valley" (a local energy minimum) in this landscape. It is mathematically improbable that such a complex landscape would have only one valley. It is far more likely that there are many valleys, each representing a stable and mathematically consistent solution.

    Third, and this is the key, each different geometric solution generates a different "Vacuum State." The vacuum is not "nothingness"; it is the lowest energy state of the system and the foundation upon which all particles and forces are built. Each "valley" in the energy landscape is a unique vacuum state. Thus, the question of parallel universes becomes a question of the multiplicity of possible vacuum states allowed by S_Unified.

    The concept of "seven heavens" or parallel universes may not refer to separate spatial worlds separated by astronomical distances, but to a more intimate and profound reality: layers of reality, overlapping and interpenetrating at every point in our own space, much like multiple radio stations filling the air. In this perspective, the universes are not "elsewhere," but are "here and now," occupying the same spatial volume but vibrating on a different existential "frequency." The house in our universe is a stable structure of particles that are excitations above "Vacuum A," which in turn is a product of the "Internal Geometry A" (<T11>_a, <Φ>_a). At the very same spatial coordinates, a "mountain" could exist in a parallel universe, being a stable structure of different particles that are excitations above "Vacuum B," which results from "Internal Geometry B" (<T11>_b, <Φ>_b)—another stable solution to the S_Unified equation. We do not see the mountain because our particles and instruments, being excitations of Vacuum A, cannot interact with excitations of Vacuum B; they are orthogonal states in Hilbert space, their waves passing through each other without interaction.

    This concept extends to the strangest phenomena of quantum mechanics. Quantum superposition, where a particle can exist in two states at once, may not be a mere mathematical probability. The particle might actually exist as a simultaneous excitation above our "Vacuum A" and its neighbor "Vacuum B." When we measure the particle, we force it to "choose" one vacuum to interact with, causing its superposition to collapse and for it to appear in our reality. Quantum entanglement, that "spooky" connection between two distant particles, may not be a connection across our four-dimensional space (described by ∫ d^4x in S_eff), but a "shortcut" through the fundamental geometric structure (described by T11 and Φ) that connects all possible vacuum states in S_Unified.

    Thus, parallel universes cease to be mere fantasy and become a potential physical explanation for the fine structure of reality, where each universe is a manifestation of a unique geometric solution, all vibrating together in cosmic harmony. We live in this grand symphony, but we can only hear the melody played by the instruments of our own universe, unaware of the other melodies that together form the complete fabric of reality.

  2. @therant3837

    January 8, 2026 at 6:22 am

    There are no parallel universes. While the concept makes a great SciFi movie or video game story it's theoretical at best, and what is a theory? A story…. created by scientists who love SciFi with very expansive and creative imaginations. You might say these 'scientists' would have made better Science fiction writers for books and movies than their field of study.

  3. @Dyslexic-Artist-Theory-on-Time

    January 8, 2026 at 6:22 am

    Could parallel universes be just future possibilities in our 3D Universe based on 1/r², the three dimensional physics of the Inverse Square Law and the spherical 4πr² geometry of Huygens’ Principle of 1670 that says: “Every point on a light wave front has the potential for a new spherical light wave". Each point on the 2D boundary of the wave front can represent a new moment in time represented by a potential photon ∆E=hf electron interaction or coupling. Could light photon, electron interactions be forming oscillations continuously transforming potential energy into the kinetic Eₖ=½mv² energy of matter, in the form of electrons, forming our probabilistic uncertain future quantum by quantum, moment by moment?

    Within such a process of energy exchange we have a photon ∆E=hf electron interaction between each cause and effect, between each action and reaction forming greater degrees of freedom for statistical entropy and what we perceive as time.

  4. @SmokeyMcb

    January 8, 2026 at 6:22 am

    "Stop me if you've heard this one… worlds will live, worlds will die… but imagine if your every fear, each bad decision, gave birth to a malformed world of nightmare. A world that shouldn't exist. And desperate as it fights to survive in the light of the true multiverse far above… these worlds are doomed to rot apart, and die, because they are wrong at their core. Welcome to the Dark Multiverse. Home to stories that should never be… It's all one big cosmic joke, except no one on this side is laughing. …well, almost no one…"

    Quoted by The Batman Who Laughs

    "I'm the only one left who remembers the Infinite Earths. You see, I know the truth. I remember all that happened, and I'm not going to forget. Worlds lived, worlds died. Nothing will ever be the same. But those were great days for me… I had a good friend in the good old days, really. He was the Anti-Monitor. He was going to give me a world to rule. Now he's gone, too. But that's okay with me. You see, I like to remember the past because those were better times than now. I mean, I'd rather live in the past than today, wouldn't you? I mean, nothing's ever certain anymore. Nothing's ever predictable like it used to be. These days… y-you just never know who's going to die… and who's going to live."

    Quoted by Psycho Pirate in Crisis on Infinite Earths issue #12. page 42.

  5. @mossibility

    January 8, 2026 at 6:22 am

    If is has the most meaning in our language. The narrator of this video tries to sound like he arrogantly knows what he's talking about, he doesn't. Portals exist, we just haven't found them yet. I wonder what the overall effect would be if were able to find one and figure out how to use it? Parallel universes would redefine mankind and our perception of God.

  6. @mossibility

    January 8, 2026 at 6:22 am

    Parallel universes exist, but our present science is fixed on the military industrial complex. If a portal were to be found and understood, we might be able to avoid our extinction, which is on the way.

  7. @Ocean_287

    January 8, 2026 at 6:22 am

    These things make me wonder so much. Im not sure if this is gonna mean anything or even make any sense. But ill say it anyways. Ever since i was a kid. Like probably around 6-8 i viewed the word like it was new to me like Yes i get i was a kid and the world is new to me but i always had these thoughts in my head like ive never been on this earth before. (I believe in reincarnation) But i lt just feels like ive never been here before but somewhere else? a feeling where my exsistance doesnt feel real. Maybe thats what it was. Some things nobody would understand but yourself. It kinda felt way too unreal im not sure if other people ever felt that way. But when I told people around me they had no idea what i was on about.

  8. @MiKeMiDNiTe-77

    January 8, 2026 at 6:22 am

    I lost my job the next day I entered a parallel universe a strange world everything is the same but different, the air is different, color hues are slightly different I know there's no going back to the other reality therefore I have to make the most of this one.

  9. @TheDisciplesOfJesusChrist-777

    January 8, 2026 at 6:22 am

    In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    Thank You, God the Father, God the Son, and God the Holy Spirit, for everything You do in my life, as well as in the lives of my family and friends. I love You so much with all of my heart and soul. In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    God bless you all. In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    Jesus is Lord of lords and King of kings, now and forevermore. In His wonderful name, I pray. Amen and amen. 🙏✝️

    Welcome to the family, my brothers and sisters in Christ. Love you all, and God bless you all in Jesus’ mighty and powerful name. Amen. 🙏✝️

    God the Father, God the Son, and God the Holy Spirit are good all the time, now and forevermore. In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    Team Jesus, now and forevermore, in His wonderful name, I pray. Amen and amen. 🙏✝️

    God is good all the time. In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    God bless you. In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

    To begin your relationship with God, just repeat this prayer:

    Dear God, I admit that I have done things that are against Your will for me, and I want to have a relationship with You. Please forgive me for my sins. I believe in my heart that Jesus died and rose again to take away my sin, and I declare Jesus Christ as my Lord and Savior. Please fill me with Your Holy Spirit that I may be faithful to You. Thank You for saving me and for letting me become Your child. Please speak to me and help me to hear Your voice and follow the way that You want me to live. I look forward to spending time with You both here on earth and in heaven. In Jesus’ name, Amen.

    🙏✝️

    May God Blessed You and everyone you know In Jesus’ mighty and powerful name, I pray. Amen and amen. 🙏✝️

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