I believe the chance of any event causing Berkshire to experience financial problems is essentially zero. We will always be prepared for the thousand-year flood; in fact, if it occurswe will be selling life jackets to the unprepared.
The market system rewards me outlandishly for what I do, but that doesn't mean I'm any more deserving of a good life than a teacher or a doctor or someone who fights in Afghanistan.
As I have mentioned before, we cannot make the same sort of money out of permanent ownership of controlled businesses that can be made from buying and reselling such businesses, or from skilled investment in marketable securities. Nevertheless, they offer a pleasant long term form of activity (when conducted in conjunction with high grade, able people) at satisfactory rates of return.
Market price, while used exclusively to value our investments in minority positions, is not a relevant factor when applied to our controlling interests.
Most investors, both institutional and individual, will find that the best way to own common stocks (shares') is through an index fund that charges minimal fees. Those following this path are sure to beat the net results (after fees and expenses) of the great majority of investment professionals.
Of the billionaires I have known, money just brings out the basic traits in them. If they were jerks before they had money, they are simply jerks with a billion dollars.
I am not in the business of predicting general stock market of business fluctuations. If you think I can do this, or think it is essential to an investment program, you should not be in the partnership.