Certainly greater than Einstein and Newton.
First of all, his/her contribution to science is greater than theirs. Einstein established the theory of relativity, but he did not accept Planck's quantum theory. These two theories are the two cornerstones of modern science, but the discord has not yet been resolved. Quantum theory mainly solves problems in the microscopic world, and relativity mainly solves problems in the high-speed world and gravitational fields. Their theories a hundred years ago are still difficult for people today to understand and master.
Einstein’s main contributions are the photoelectric effect, theory of relativity, and unified field theory. Each contribution is greater than the last. The photoelectric effect is only his small contribution, but it is already a world-class contribution. The subsequent contributions are far greater. Far beyond first class.
Newton's great contribution lies in Newtonian mechanics, the theory of universal gravitation, calculus, etc., which are the cornerstones of classical physics, bringing classical mechanics to the highest peak. Almost all high school students and college students today know his theories from more than 300 years ago. Archimedes is indeed great, and Newton and Einstein are even better in their systematic contributions to theory. Newton was a first-class mathematician, but Einstein could not be called a first-class mathematician.
If the theory of relativity and quantum theory can be completely coordinated, he will be named after Newton and Einstein. He will be the third giant in the history of science and will cause a huge storm in the scientific world. , huge revolution, huge leap, the first revolution will be physics and astronomy. If he/she can solve the most difficult problems in mathematics, and then solve fatal problems in life sciences and medical sciences such as cancer and AIDS, I think he/she will definitely be greater than Newton and Einstein.