In Ramanujan's biography, there is a mention of a british guy who was very fast at calculations. He was faster than Ramanujan himself. Unlike Ramanujan, that gu

In Ramanujan's biography, there is a mention of a british guy who was very fast at calculations. He was faster than Ramanujan himself. Unlike Ramanujan, that guy had easy access to all the modern math literature of the time but still he wasn't a mathematician. And Ramanujan became first class mathematician even without any resources or formal education. I think doing calculation is mechanical skill. But gaining insights from those calculations is wholly different skill.