Why Do We Need Foundations for Modelling Uncertainties?
  Surely we want solid foundations. What kind of castle can we build on sand?
What is the point of devoting effort to balconies and minarets, if the
foundation may be so weak as to allow the structure to collapse of its own
weight? We want our foundations set on bedrock, designed to last for
generations. Who would want an architect who cannot certify the soundness of
the foundations of his buildings?
