General Relativity2026-04-302 minarXiv:2604.27880expressBlack Hole with a Fluffy CoreA pencil dropped on the floor hits with its entire surface at once. But if the floor were quantum, made of countless vibrating grains of sand, the pencil would never touch a single point.Hongguang Liu·Ioannis Soranidisno-hair theoremHawking radiationJacob BekensteinJohn Archibald WheelerStephen Hawkingblack holegravitational singularitysingularityblack hole mergerprimordial black hole👍👎☆SimplePopularAdvanced