In the end, experts cannot guarantee outcomes. They cannot promise that they will never make mistakes or that they will not fall prey to the same shortcomings that govern all human deliberations. They can only promise to institute rules and methods that reduce the chance of such mistakes and to make those errors far less often than a layperson might. If we are to accept the benefits of a profession’s work, we have to accept something less than perfection, perhaps even a certain amount of risk.
