I accessed this HBR article in my Management class, because my professor was/is a huge fan of Clay Christensen, better known for writing The Innovator's Dilemma. It's a fantastic read and definitely something that people deciding about whether or not to follow the yellow brick road to the Emerald City of Financial Independence should read.
It's about a solid decision framework that minimizes the regrets you have later in life. Read the book if you liked this article. :)