Dark matter interacts gravitationally with black holes, suggesting that black holes can attract and trap dark matter, although most dark matter resides in galaxy halos rather than at the centers where black holes typically are. There is speculation about the potential for observing dark matter as it falls into black holes, possibly through gravitational waves or radiation, if it were to clump sufficiently. The discussion raises questions about dark matter's clumping behavior and its thermodynamic properties, noting that dark matter particles can pass through one another without clumping. Additionally, the conversation explores the idea that black holes may generate spiral gravitational waves, which could lead to dynamic repulsion at long distances, potentially explaining the accelerated expansion of the universe. Overall, dark matter's interaction with black holes remains a complex and intriguing topic in cosmology.
