Jacob Lund Fisker - Early Retirement Extreme --- he calls his approach 'applied capitalism' and developed the concept of the Renaissance Man to explain how there are '4 dimensions' to work on to retire early - financial, social, self-reliance and I can't remember the fourth one... damn work of genius if you ask me.

That doc is quite old now, but very well put together, especially the first episode.

I will share, I love these competitions.