The understanding of space and gravity has had a profound impact on the development of modern physics and science and technology. To call him a "world-changing wise man" is an apt description, as his ideas and achievements have indeed had a significant impact on human understanding of the world.
Einstein's theory of relativity includes special relativity and general relativity, where special relativity mainly deals with the relativity of time and space, while general relativity further the nature of gravity. These theories have not only revolutionized the field of physics, but also have a wide range of applications in other scientific fields such as astronomy, cosmology, and computer science.
Einstein's achievements lie not only in his scientific theories, but also in his ideas and methods. He promotes critical thinking and innovation, and encourages scientists to explore and challenge conventional ideas. His work and ideas have inspired countless scientists and researchers and promoted the progress of science and technology.
Therefore, calling Einstein a "world-changing wise man" is a high evaluation of his achievements and influence, and it also reflects his important place in human history.