The declaration is wrong. While a forecast is made with the careful scientific process and method implementation, on the part of the manager, it requires some guesswork.A few limitations of forecasting are  - Data collection and analysis is a time-consuming and expensive problem. And sometimes the outcome is not worth the cost, as predictions are not always very dependent. The only estimate of potential events includes this. No promises or assurances exist. It just states the possibility of and preparations for an incident in the future. It needs the managers' judgment, abilities, experience, and clairvoyance. One incorrect call and the whole forecast may be incorrect.