As Warren Buffctt says, 'Wide diversification is only required when investors do not understand what they are doing." In the end, diversification is a zero-sum game at best. If you are evenly diversified, when one asset class goes down, the other goes up. You lose money in one place and make it in another, but you don't gain any ground. You are static. Meanwhile, inflation, a topic we will also discuss in detail later in the book, marches on.
Rather than diversify, wise investors focus and specialize. They get to know the investment category they invest in and how the business works better than anyone else. For example, when investing in real estate, some people specialize in raw land and others in apartment buildings. While both are investing in real estate, they are doing so in totally different business categories. When investing in stocks, I invest in businesses that pay a steady dividend (cash flow). For example, today I am investing in businesses that operate oil pipelines. After the stock market crash of 2008, the share prices of these companies dropped, making the cash flow dividends bargains. In other words, bad markers offer great opportunities if you know what you are investing in.
Smart investors understand that owning a business that adjusts to the ups and downs of the economy or investing in cash-flowing assets is much better than owning a diversified portfolio of stocks, bonds, and mutual funds—investments that crash when the market crashes.
— Robert Kiyosaki; Rich Dad's Conspiracy of The Rich