Not disagreeing with the obvious Dropp. Think you may have sent a similar link before!
A friend of mine has actually met this individual and says that his lifestyle is fairly frugal. To him, it's all about surviving on the minimum and not 'wasting' a single cent that could otherwise be invested! Fine in itself, but you end up living your whole life centred entirely around saving and never get to enjoy the benefits of your ever increasing wealth.
Life is about balance, as are investments. This guy invests in equities and bonds. Nothing else.