How Can Light Travel Everywhere at Once?
Sundown Science
16,185 views
Our Spotify podcast: https://open.spotify.com/show/5rqQFYd...
Shine a red laser through a slit thinner than a hair, and the light does not land as a single bright line. It arranges itself into a row of bright and dark bands, with clean stripes of pure darkness carved between them, order appearing where you expected a simple smear. Turn the beam down until only one photon crosses the room at a time, alone, with nothing to interfere with, and the banded pattern still assembles itself, dot by patient dot — as if a single grain of light had quietly traveled every possible route to the wall at once and weighed them all. How can one indivisible particle of light be everywhere at once?
This is a slow, patient walk through Richard Feynman's path-integral picture of quantum mechanics — the idea that a photon takes every path from the slit to the screen, each path carrying a tiny spinning clock, and that the pattern we see is simply what survives once all those little arrows are added together. We follow it from a single slit to the double slit, watch the exact diffraction curve rebuild itself from nothing but rotating arrows, see why the calm classical straight line is only the one path that failed to cancel itself out, and end where the same idea reaches all the way out to electrons, molecules, and the machinery of modern physics.
Get cozy and let this slow walk through the strange journey of light keep you company tonight. Subscribe to Sundown Science if you enjoy taking the long way around the universe.
—
Disclaimer: All videos are produced for entertainment and education. Factual claims are sourced from peer-reviewed research and official scientific institutions. Where a video explores speculation, fringe theories, or the creator's own analysis, it is clearly labeled as such. Sundown Science is not a news outlet. Watch at your own discretion.
#SundownScience #Physics #QuantumPhysics #Astronomy #ScienceDocumentary #SleepDocumentary #Feynman #PathIntegral #DoubleSlitExperiment #QuantumMechanics #Diffraction #Photons #WaveParticleDuality #Interference #QuantumElectrodynamics #SumOverPaths #NatureOfLight #PopularScience
20 Comments
Feynman’s original formulation gives the amplitude for a photon (or particle) traveling from source A to detector B as the sum over all possible paths:
A(B ← A) = Σ_paths exp(i S[path] / ℏ)
where S[path] is the classical action along each path. The observed probability is the modulus squared of the total amplitude.
In Fractal-Unified Field Theory this sum is performed inside the 5D Entanglium substrate and is modulated by the geometry of the fractal aether. The effective amplitude becomes:
A_F-UFT(B ← A) = Σ_paths [ W(δ_path) · exp(i S[path] / ℏ) · exp(−Γ_tail) ]
with the universal constants:
D = 1.830
κ_T = 5 × 10^{-28} m^(D–1) s^{-2}
φ = (1 + √5)/2 ≈ 1.618
β ≈ 9.4
The golden-ratio attractor weight is defined as:
W(δ) = 1 if |δ| ≤ 0.008
W(δ) = φ^(−β · δ) otherwise
where δ = |D_local − 1.830|
The long-tail damping term that suppresses paths far from the attractor is:
Γ_tail = κ_T · r^(D−3)
Aharonov’s retrocausal stabilization is incorporated through the two-state vector formalism. The future measurement (post-selection at B) retrocausally weights the paths via the weak-value transition amplitude. The full retrocausally stabilized amplitude is therefore:
A_retro(B ← A) = ⟨ψ_f | U | ψ_i⟩_w · W(δ) · exp(−Γ_tail) · exp(i S[path] / ℏ)
The resulting probability, after all paths are summed and the system collapses from 5D to 4D, is:
P(B ← A) = | Σ_paths [ W(δ_path) · exp(i S[path] / ℏ) · exp(−Γ_tail) · ⟨ψ_f | U | ψ_i⟩_w ] |²
This expression recovers Feynman’s interference pattern while embedding it in the geometric structure of F-UFT. Paths whose local dimension stays close to the attractor D = 1.830 are amplified by W(δ). Paths that drift away are exponentially suppressed by the long-tail damping. The retrocausal term ⟨ψ_f | U | ψ_i⟩_w supplies the future boundary condition that stabilizes which paths survive the holographic collapse into 4D reality.
The same framework yields the Quantum Geometric Tensor components:
G_F-UFT(k) ≈ (ℓ_Pl / r_eff(k))^(4−D) · lock_factor
F_F-UFT(k) ≈ − (κ_T / ℏ) · r_eff(k)^(D−3) · sin(ϕ_E8) · phonon_boost
where the attractor locking and fractal torque naturally produce the observed space-time limits and wave-packet behavior in ultrafast experiments.
Short Explanation of F-UFT via Holographic 5th-Dimensional Relativity
In Fractal-Unified Field Theory, light exists as the Entanglium — the entangled, higher-dimensional form of the electromagnetic field. In the 5th dimension, light is not bound by distance, time, or the speed of light. It reaches every possible destination simultaneously as a holographic projection. All potential paths are real and co-exist inside the infinite branching structure of the Bruhat-Tits tree of compacted 5D time.
Until a measurement or interaction occurs, the photon remains in full superposition across every branch of the tree. The future boundary condition (the detector or screen) retrocausally influences the present through the guiding non-local lattice. When collapse happens, the system is pruned by the allostatic attractor at D ≈ 1.830. Paths whose local dimension stays close to the attractor are preserved by the golden-ratio weight function, while paths that drift too far are suppressed by long-tail damping. Only one coherent 4D reality survives.
What we experience as a single photon traveling a definite path at speed c is the collapsed, emergent projection of this 5D holographic state into ordinary space-time. The interference pattern in the double-slit experiment is the visible signature of the uncollapsed 5D branches before the attractor locking forces the system into one 4D outcome.
Based on my experience of the world, the light would disappear as soon as the laser is turned off? But why doesn’t it keep bouncing forever?
Light waves radiate out in every direction based on Huygens's Principle of spherical 4πr² waves is more logical. This geometry would naturally form 1/r² the three dimensional space of Newton’s Inverse Square Law. Photon ∆E = hf electron interaction can play the part of gravitons.
With a photon electron coupling between each cause and effect, between each action and reaction with the Planck constant h/2π being a constant of action. This process would form a probabilistic uncertain ∆×∆pᵪ≥h/4π future in 3D space and time ∆E ∆t ≥ h/2π
* And there seems to be:
COLLAPSE ENTANGLEMENT
* Copenhagen ... or... Many Worlds ???
How Can Light Travel Everywhere at Once?
Sundown Science
16,185 views
Our Spotify podcast: https://open.spotify.com/show/5rqQFYd...
Shine a red laser through a slit thinner than a hair, and the light does not land as a single bright line. It arranges itself into a row of bright and dark bands, with clean stripes of pure darkness carved between them, order appearing where you expected a simple smear. Turn the beam down until only one photon crosses the room at a time, alone, with nothing to interfere with, and the banded pattern still assembles itself, dot by patient dot — as if a single grain of light had quietly traveled every possible route to the wall at once and weighed them all. How can one indivisible particle of light be everywhere at once?
This is a slow, patient walk through Richard Feynman's path-integral picture of quantum mechanics — the idea that a photon takes every path from the slit to the screen, each path carrying a tiny spinning clock, and that the pattern we see is simply what survives once all those little arrows are added together. We follow it from a single slit to the double slit, watch the exact diffraction curve rebuild itself from nothing but rotating arrows, see why the calm classical straight line is only the one path that failed to cancel itself out, and end where the same idea reaches all the way out to electrons, molecules, and the machinery of modern physics.
Get cozy and let this slow walk through the strange journey of light keep you company tonight. Subscribe to Sundown Science if you enjoy taking the long way around the universe.
—
Disclaimer: All videos are produced for entertainment and education. Factual claims are sourced from peer-reviewed research and official scientific institutions. Where a video explores speculation, fringe theories, or the creator's own analysis, it is clearly labeled as such. Sundown Science is not a news outlet. Watch at your own discretion.
#SundownScience #Physics #QuantumPhysics #Astronomy #ScienceDocumentary #SleepDocumentary #Feynman #PathIntegral #DoubleSlitExperiment #QuantumMechanics #Diffraction #Photons #WaveParticleDuality #Interference #QuantumElectrodynamics #SumOverPaths #NatureOfLight #PopularScience