" When charting, for example, the moment when a system had entered a new state as part of a sequential process (the dot labeled “now”), Beer advocated the use of statistical models to make available several potential outcomes, such that “instead of producing merely single-figure forecasts (and who can foretell the future with that kind of precision?), [the model] produces a joint parameter distribution,” illustrating, at least implicitly, “the inherent uncertainty of all forecasting” "

World Futures (R. John Williams)