More generally, ‣.
Constantly think about what you are doing.
To ask a lot of questions is one of the ‣.
A future-oriented version of this: as a series of questions: What will happen after that?
Wikipedia: Five whys.
‣ Yes, there were elements of luck in the discovery; but there were many other people in much the same situation, and they did not do it! Why me? Luck, to be sure, but also I was preparing myself by trying to understand what was going on—more than the other people around who were merely reacting to things as they happened, and not thinking deeply as to what was behind the surface phenomena.