Test your mind here - Stretching distant clues together to make a big BIG BIG picture.
Warning you will need a pad and pencil to watch this video as the speaker covers many  giddying fields of knowledge in a few sentences. For two whole hours. So get the scratch pad and strap your self in. Stop the video and write. Then restart the video.  Don't say I didn't warn you.
The video is broken down into 5 manageable pieces at the address shown below . Scratch pad still needed.
A mind stimulant better than coffee, yes?