General Relativity2026-05-131 minarXiv:2605.13508expressBottomless Black Hole: A Quantum RecipeModern detectors of gravitational waves confirm that black holes are real. Spacetime can be compared to a giant trampoline: massive stars make it sag.Vishnulal Cheriyodathillathu·Tanmay Patil·Saurya Das·Soumen BasakPenrose singularity theoremno-hair theoremRoger PenroseJacob BekensteinJohn Archibald Wheelersingularitygravitational singularityblack holeblack hole mergerquantum gravity👍👎☆SimplePopularAdvanced