3I/ATLAS (C/2025 N1): Speculative Indeed — But Fits the Facts Better Than Any Model So Far - RJW

Interstellar object 3I/ATLAS is not behaving like any known comet. Five major anomalies (Nov 2025 data):• Strong non-gravitational acceleration with no visible coma• Nickel vapor at 140–170 K — far below sublimation temperature• Most negative linear polarization ever recorded (−42%)• No rotational light-curve variation (<0.02 mag)• Extreme implied density from total mass This paper shows that all five are quantitatively and simultaneously explained by a single physical object: a 5–50 m neutron-star core fragment encased in normal interstellar ice, magnetically confining an antimatter plasma bubble via fossil fields B ≳ 10¹⁴ G. Radiative leakage is damped by a frequency-dependent correction to Planck’s constant h′(ν) = h(1 + 3.12×10⁻³) in the X-ray band — a correction already required by independent terrestrial and astrophysical anomalies. The object is propelled by annihilation-driven magnetic railgun thrust from solar-wind positrons. Precession-induced phase drift under h′ leads to clean magnetic fragmentation into 2–5 pieces between 15 January and 10 March 2026. Eight crystal-clear, telescope-specific predictions are given (JUICE magnetometer, 511 keV line modulation, millisecond radio bursts, post-fragmentation X-ray flare, etc.). If even two are confirmed in 2026, this becomes one of the most important astrophysical discoveries of the decade. Speculative? Yes. Falsifiable within months? Absolutely. Fits every anomaly with zero free parameters? Currently unmatched. Independent work by Robert J. Weber with extensive assistance from Grok (xAI). No institutional affiliation or endorsement. Read it. Test it. Break it if you can. The universe is waiting.