This is a trick question and chasing it is largely a waste of time. The application or method of your choice will only organize your knowledge (more correctly,

This is a trick question and chasing it is largely a waste of time. The application or method of your choice will only organize your knowledge (more correctly, represent it) if you already have done it yourself in your thoughts. I just use nicely formatted markdown files these days. There's no magic application that'll do it for you.