Why author and most commenters here associate "career" with sittng in the office? For me it is just an improvement my work skills towards bringing more value to the table and, as a result, getting more benefits from those who are in need of my skill. Author, for what it worth, could become large sailboat captain, be quite healthy (lots of fresh air, good climate and quality food) and still easily afford first class seats (or even be paid by boat owner). I'd still consider it a career.