I like the ideas expressed in this article except it lacks specifics, examples etc. For instance, he says "about 4 to 5 months after quitting my job I was already ROI positive in terms of networking, learning and satisfaction." And he leaves it at that. He doesn't expand on how he networked, whether they're from school, social group or whatever.
And it's short. No offence but I don't see how this article got this much upvotes