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The following question is a question that confuses my mind long since. I'm sorry if it looks nonsense.
If mathematicians who had made important discoveries in mathematics such as Bernhard Riemann, Carl Friedrich Gauss, Évariste Galois, Joseph Fourier, Leonhard Euler, Niels Henrik Abel and others had joined today's mathematics olympiads ( for example , IMO) would they all won the gold medal (perfect score) ?
Should the mathematician who did mathematical discoveries be an Olympiad winner in the past?
These questions can actually be dealt with in $1$ single question.
A person who has not joined IMO, can contribute to mathematics in the future?
Thank you and Best Regards.