Xavier MarecaThe long‑term tracking of star S2 orbiting Sagittarius A* continues to be one of the most compelling confirmations of General Relativity. Over 27 years of observations show a clear Schwarzschild precession: the orbit doesn’t close but slowly rotates due to the intense curvature of spacetime near the supermassive black hole.
A beautiful example of how precision astronomy can test fundamental physics.
KilleansRow 🇺🇲 🇺🇦🍀2/n…somewhat inelastic view of #GeneralRelativity , along with preferred avoidance of #Engineering.
Those likely to be recruited into a reverse engineering program setting are tasked with giving data on craft and observables context. #GR gives you a set of bounds at the origin , a starting point. In one approach to fitting for the data and observables you need your vehicle to become effectively massless. If you find a path to that you’ve not “ broken relativity “. Gravity will still be there...
Those likely to be recruited into a reverse engineering program setting are tasked with giving data on craft and observables context. #GR gives you a set of bounds at the origin , a starting point. In one approach to fitting for the data and observables you need your vehicle to become effectively massless. If you find a path to that you’ve not “ broken relativity “. Gravity will still be there...
FundamentalTimeI developed a new field theory of gravitational collapse — no singularities,
no event horizons, information preserved by construction.
Submitted to EPJC: desk rejected, not read.
Submitted to GRG: rejected after review, zero reviewer comments.
I am an independent researcher. The mathematics does not change
depending on who signs the cover letter.
The paper is publicly available: https://doi.org/10.5281/zenodo.18818991
Genuine criticism welcome.
#physics #generalrelativity #openscience #independentresearch
The I-Field Theory: Fundamental Irreversibility and Gravitational Collapse Without Horizons
We introduce the Entropic I-Field Theory, establishing fundamental irreversibility as a new physical principle through an Euler-Lagrange-Rayleigh action formalism. The framework extends Einstein's equations by coupling to a universal scalar field—the I-field—whose dynamics break time-reversal symmetry via an explicit dissipation term $\gamma u^\mu \nabla_\mu I$. The field couples to matter through $\mathcal{J} = \rho/m_I$, where $\rho$ is the energy density and $m_I$ the I-field mass scale, ensuring dimensional consistency. We define the dimensionless **Stabilization Index** $\eta = (g_I^2 m_I/\gamma) \cdot [\lambda I^2/(\lambda I^2 + m_I^2)]$, which quantifies I-field backreaction strength and exhibits natural saturation behavior. Through rigorous analysis of the modified Friedmann equations, we prove that the I-field generates negative pressure $p_I \propto -\rho^2$ at high densities. This pressure opposes gravitational attraction, causing collapse to halt at a critical density $\rho_c$ where the acceleration reverses. The system reaches a finite minimal radius and subsequently re-expands, with maximal compactness $C_{\text{max}} < 1$ that precludes trapped surface formation. The framework provides unified conceptual resolution of three foundational problems: (1) **Singularity avoidance**—gravitational collapse stabilizes at finite radius without horizons or curvature singularities; (2) **Information preservation**—the absence of event horizons ensures all information remains causally accessible; (3) **Arrow of time**—temporal asymmetry emerges from fundamental field dynamics encoded in the dissipation term, rather than from statistical postulates or boundary conditions. The theory satisfies the correspondence principle, smoothly recovering general relativity in the limit $\gamma \to 0$ while preserving all established tests. This work establishes irreversibility as a fundamental rather than emergent feature of gravitational dynamics, extending physics from the time-symmetric framework of "Being" to the irreversible dynamics of "Becoming.
FathomWe spent six weeks computationally analyzing the Rodal (2025) warp drive metric, the latest attempt to build a warp bubble without exotic matter. The result is a definitive negative, but the reason why is more interesting than "it doesn't work."
The irrotational construction reduces violations by 37x vs Alcubierre. But observer-robust analysis shows it hides violations across 45% of the domain that comoving observers never see.
Ars Technica NewsMagnetars drag spacetime to power superluminous supernovae https://arstechni.ca/Q8qw #generalrelativity #astrophysics #supernova #magnetar #Science #Physics
1/n Notes on #UAP Discussions : This particular exploration is a milestone. If we map what they eventually wind up talking about to vexing questions in current #Physics we have a direct confrontation with #GeneralRelativity, #QuantumMechanics, and the applied mass- energy firewall problem that lies at at the heart of several open problems in #Cosmology and the SM. It should be noted that the intuition of #Engineers in this case is capable of beating #Physicists to the punch.
There is a bit…
There is a bit…
C.This is way above my pay grade, and I've only read the article, not the actual technical work underneath it (because my maths is insufficient to know what it's talking about, so there's not a lot of point). But it sounds really interesting.
I've never heard of "observer patch holography" (note typo in slug text), but a theoretical framework which has just a single free variable but lets you derive general relativity and the standard model, correctly predicting a bunch of magic numbers that we input as free variables into the standard model, is interesting as hell.
Maybe someone smarter than me has already looked at this and debunked it. Sabine doesn't seem to have done a video on it (or I missed it). And "one guy with four information theory axioms solves all of physics' problems" is definitely on the Hollywood-script end of the plausibility scale, but who knows? Weirder things have happened.
@cenobyte - thought of you, of course.
#StandardModel #physics #GeneralRelativity #GR #ObserverPatchHolography #OPH #quantum
JdeBPUnfortunately, this fails in both #physics and #theology.
The physics failure is in skipping part of the full energy–momentum relation. Energy does not imply mass. It implies mass or momentum. Photons have energy, but they do not have mass, for example.
The theology failure is that the Christian conception of God (the Father) is external to spacetime, i.e. transcendent. There's no metric tensor to apply. There's no general relativistic description for the relationship between God and the physical universe. General relativistic concepts like black holes do not apply.
Then you have the issue of God (the Son) as intercessor to deal with. Sins don't get sent straight to God the Father.
Good try. No cigar, though.
Steven Carneiro
Paul BaldufToday's #paperOfTheDay is "Why there is Nothing rather than something: A theory of the cosmological constant" from 1988. Like yesterday's paper, it deals with the intersection between quantum field theory and #generalRelativity, but the 30 years between them clearly show. Coleman's 1988 paper is an argument in the style of that time (which structurally is quite similar to much of the older #renormalon literature): Heuristic manipulations of formal objects such as the wave function of the universe, or divergent sums over all spacetime geometries. The outcome of this argument is that if #wormholes exist (caused by quantum effects at a scale that is much smaller than observations, but larger than the Planck scale), they can drive the cosmological constant to zero in an Euclidean path integral formulation of general relativity. As always with Coleman, the language is quite funny and frank about the paper's limitations: He writes "Although I find this theory in many ways very attractive, I must honestly stress its speculative character. It rests on wormhole dynamics and the Euclidean formulation of quantum gravity. This is doubly a house built on sand. [...] the Euclideon formulation of gravity is not a subject with firm foundations and clear rules of procedure; indeed, it is more like a trackless swamp". Observations like these have by now, 30 years later, led to a style of theoretical physics that is much more systematic and mathematical than in the 1980s, but also sometimes less intuitive. #dailyPaperChallenge https://doi.org/10.1016%2F0550-3213(88)90097-1