"Most of the money these hedge funds manage comes from pension funds, endowments, and similar organizations that are trying to grow their investments today to pay out the needs of retirees and students tomorrow. We do not know how to create a system that allows fund managers to design novel investment strategies that are risk-free. If we want to continue to encourage fund managers to invent strategies that potentially generate large returns for their investors, we have to accept that blows-ups are part of that invention process."