General Relativity2026-08-052 minarXiv:2608.04867expressMatter vs. Spacetime: A Matter of ChoiceA scale that weighs not a body, but the very space around it. That's how Einstein's equations work in general relativity: they link the curvature of spacetime to what resides within it.B. N. Jayawiguna·A. SulaksonoEinstein field equationsequivalence principleAlbert EinsteinBernhard RiemannJoseph Weberspacetime curvaturemodified gravityspacetimequantum gravitygravity👍👎☆SimplePopularAdvanced