A simple way to sanity-check any asset you’re thinking of buying, whether it’s a rental property, commercial real estate, gold, whatever … Look at the smartest person you know. A friend, colleague, relative, or even someone you follow online. Then ask yourself: if they had the same amount of money I do, would they buy this exact asset? If the answer is no, pause. Spend at least a week thinking through why the smartest person you know has zero interest in it. That question alone will save you from a lot of bad purchases.