My problem was always I took on too much so I had surprising breadth. I could find connections between many areas. I wish I had just focused on one or two thing

My problem was always I took on too much so I had surprising breadth. I could find connections between many areas. I wish I had just focused on one or two things and gone very very deep. I would probably be a more fulfilled academic today if I was able to do that instead of an engineering manager.