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Some would argue more for Wiles or Perelman on account of solving long-standing conjectures.
Some would argue more for Wiles or Perelman on account of solving long-standing conjectures.
Top three greatest living mathematician, perhaps?
I think what gives Tao the title is how multidisciplinary he is. He can wander in to a new subfield of mathematics and start making SOTA contributions after not very much time, which is a rare thing.