Because of UNCERTAINTY, there is an inevitable gap between EXPECTED resource values made from MODELS  and RESULTING resource values obtained after operating the actual RESOURCE.

​

RESULTING decision KPI s (Exploration success, Production plans, Reserve estimates…) are always lower than IDEAL KPIs that would have been obtained in the ideal but unrealistic case of no UNCERTAINTY.

Thus, UNCERTAINTY always means a loss in terms of the ECONOMIC value of the project.