Discovering a theory of quantum gravity would indeed be a monumental scientific achievement. Quantum gravity aims to unify two fundamental theories of physics—quantum mechanics and general relativity—and provide a deeper understanding of the fundamental nature of the universe. It is currently one of the most challenging and open problems in theoretical physics.
If a physicist were to successfully propose a theory of quantum gravity, it would undoubtedly be a groundbreaking accomplishment that revolutionizes our understanding of the universe. The scientist behind such a theory would likely be recognized as a prominent figure in the field and receive significant recognition for their contribution.
However, the concept of "greatest scientist" is subjective and can vary depending on different criteria and perspectives. Scientific progress is often the result of collective efforts and contributions from numerous researchers and scientists over time. While the discovery of a theory of quantum gravity would be highly significant, it's important to remember that science is an ongoing process, and future discoveries and advancements will continue to shape our understanding of the universe.
In summary, the discovery of a theory of quantum gravity would undoubtedly be a remarkable achievement, and the scientist behind it would be held in high regard. However, the notion of the "greatest scientist" is complex and multifaceted, and the impact of any scientific breakthrough should be considered within the broader context of scientific progress.