The system is destined to collapse because the earnings, if any, are less than the payments to investors. Usually, the scheme is interrupted by legal authorities before it collapses because a Ponzi scheme is suspected or because the promoter is selling unregistered securities. As more investors become involved, the likelihood of the scheme coming to the attention of authorities increases. While the system eventually will collapse under its own weight, the example of Bernard Madoff demonstrates the ability of a Ponzi scheme to delude both individual and institutional investors as well as securities authorities for long periods: Madoff's variant of the Ponzi scheme stands as the largest financial investor fraud committed by a single person in history. Prosecutors estimate losses at Madoff's hand totaling roughly $21 billion, as estimated by the money invested by his victims. If the promised returns are added the losses amount to $64.8 billion, but a New York court dismissed this estimation method during the Madoff trial.