The nature of dark matter remains an open question in physics, and there are various theories and hypotheses about its composition. While it is true that some theories have proposed the existence of primordial black holes as a potential explanation for dark matter, it is important to note that this idea is speculative and not currently supported by conclusive evidence.
Primordial black holes are hypothetical black holes that could have formed in the early universe, potentially as a result of density fluctuations. If these primordial black holes exist, they could contribute to the total mass of the universe and account for some or all of the observed dark matter.
However, it is worth emphasizing that the majority of current dark matter models do not involve black holes. Instead, they often involve hypothetical particles that interact weakly with ordinary matter and have properties that make them difficult to detect directly. These particle-based models, such as WIMPs (Weakly Interacting Massive Particles) or axions, are currently the subject of intense experimental and observational investigations.
While the idea of primordial black holes as a source of dark matter is intriguing, it is still a speculative possibility that requires further investigation and empirical evidence. Ongoing research and observational efforts are aimed at shedding more light on the nature of dark matter and providing a clearer understanding of its origin and composition.