> was he familiar with the General Theory of Relativity? Probably not very, since he was 80 years old when it was first published. But that's kind of the poin

> was he familiar with the General Theory of Relativity? Probably not very, since he was 80 years old when it was first published. But that's kind of the point - before theories like that existed, the scope of human knowledge about the world was such that one person could have pretty good grasp of it, since the state of knowledge about each individual topic made it much more accessible to non-experts.