Isaac Newton. How his mind bridged the most brilliant levels of science and mathematics, to queries deeply spiritual, mystical and theological. How did these diverse studies and thoughts lend mutual inspiration? We'd start out the conversation with a question about the relationship between chemistry and alchemy, and he would take the lead from there
As soon as I read the title of this thread, Isaac Newton came to mind, too. I am a physicist and consider him the greatest mind that ever lived, one who - did you know? - even found a way to save the pound back in the day by promoting, as director of the English Mint, the knurling on coins to prevent them from being filed down to steal precious metal.
But then I thought again. I have read several biographies of the character, and beyond his superintelligence, frankly I would not want to walk with him. Apart from the fact that he would probably refuse (another remarkable thing about Newton is that he lived his whole life within a 50-mile radius around London, which by the way proves that anyone who thinks that to do anything good you have to travel is very wrong
), but then he was not exactly an easy person. He would hardly be going to talk. Back in the day, by the way, the results you got were kept tucked away in a desk drawer, certainly not published on Nature or MNRAS. And it is said that anyone who tried in any way to thwart him was famously destroyed. So, not exactly the kind of person you want to spend a couple of weeks with.
Alternatively perhaps, again among physicists, I'd like to walk a Camino with... Richard Feynman, also a physicist, also very brilliant, but unlike Newton very funny and really human (reading suggestion: "
Surely You're Joking, Mr. Feynman!: Adventures of a Curious Character" and the other popular books written by him).
Or maybe with good old Alan Turing, who by the way, being someone who used to run marathons, as well as being considered the civilian who helped the most to save us from Nazifascism, would be very fit and also have a lot of stories to tell. Although a probably rather ... ENIGMA-tic fellow