Updated March 14, 2022: I wrote the body of this post eleven years ago.
https://www.inc.com/jeff-haden/heres-how-to-tell-in-20-seconds-if-someone-will-never-be-successful.html
https://www.inc.com/jeff-haden/heres-how-to-tell-in-20-seconds-if-someone-will-never-be-successful.html